Untabify C files. Will watch buildbots.
diff --git a/Modules/yuvconvert.c b/Modules/yuvconvert.c
index e5333d9..a0fa639 100644
--- a/Modules/yuvconvert.c
+++ b/Modules/yuvconvert.c
@@ -4,115 +4,115 @@
 void
 yuv_sv411_to_cl422dc(int invert, void *data, void *yuv, int width, int height)
 {
-	struct yuv411 *in = data;
-	struct yuv422 *out_even = yuv;
-	struct yuv422 *out_odd = out_even + width / 2;
-	int i, j;		/* counters */
+    struct yuv411 *in = data;
+    struct yuv422 *out_even = yuv;
+    struct yuv422 *out_odd = out_even + width / 2;
+    int i, j;                   /* counters */
 
-	for (i = height / 2; i--; ) {
-		for (j = width / 4; j--; ) {
-			YUV422_Y0(*out_even) = YUV411_Y00(*in);
-			YUV422_U0(*out_even) = YUV411_U00(*in);
-			YUV422_V0(*out_even) = YUV411_V00(*in);
-			YUV422_Y1(*out_even) = YUV411_Y01(*in);
-			out_even++;
-			YUV422_Y0(*out_even) = YUV411_Y02(*in);
-			YUV422_U0(*out_even) = YUV411_U02(*in);
-			YUV422_V0(*out_even) = YUV411_V02(*in);
-			YUV422_Y1(*out_even) = YUV411_Y03(*in);
-			out_even++;
-			YUV422_Y0(*out_odd) = YUV411_Y10(*in);
-			YUV422_U0(*out_odd) = YUV411_U10(*in);
-			YUV422_V0(*out_odd) = YUV411_V10(*in);
-			YUV422_Y1(*out_odd) = YUV411_Y11(*in);
-			out_odd++;
-			YUV422_Y0(*out_odd) = YUV411_Y12(*in);
-			YUV422_U0(*out_odd) = YUV411_U12(*in);
-			YUV422_V0(*out_odd) = YUV411_V12(*in);
-			YUV422_Y1(*out_odd) = YUV411_Y13(*in);
-			out_odd++;
-			in++;
-		}
-		out_even += width / 2;
-		out_odd += width / 2;
-	}
+    for (i = height / 2; i--; ) {
+        for (j = width / 4; j--; ) {
+            YUV422_Y0(*out_even) = YUV411_Y00(*in);
+            YUV422_U0(*out_even) = YUV411_U00(*in);
+            YUV422_V0(*out_even) = YUV411_V00(*in);
+            YUV422_Y1(*out_even) = YUV411_Y01(*in);
+            out_even++;
+            YUV422_Y0(*out_even) = YUV411_Y02(*in);
+            YUV422_U0(*out_even) = YUV411_U02(*in);
+            YUV422_V0(*out_even) = YUV411_V02(*in);
+            YUV422_Y1(*out_even) = YUV411_Y03(*in);
+            out_even++;
+            YUV422_Y0(*out_odd) = YUV411_Y10(*in);
+            YUV422_U0(*out_odd) = YUV411_U10(*in);
+            YUV422_V0(*out_odd) = YUV411_V10(*in);
+            YUV422_Y1(*out_odd) = YUV411_Y11(*in);
+            out_odd++;
+            YUV422_Y0(*out_odd) = YUV411_Y12(*in);
+            YUV422_U0(*out_odd) = YUV411_U12(*in);
+            YUV422_V0(*out_odd) = YUV411_V12(*in);
+            YUV422_Y1(*out_odd) = YUV411_Y13(*in);
+            out_odd++;
+            in++;
+        }
+        out_even += width / 2;
+        out_odd += width / 2;
+    }
 }
 
 void
 yuv_sv411_to_cl422dc_quartersize(int invert, void *data, void *yuv,
-				 int width, int height)
+                                 int width, int height)
 {
-	int w4 = width / 4;	/* quarter of width is used often */
-	struct yuv411 *in_even = data;
-	struct yuv411 *in_odd = in_even + w4;
-	struct yuv422 *out_even = yuv;
-	struct yuv422 *out_odd = out_even + w4;
-	int i, j;		/* counters */
-	int u, v;		/* U and V values */
+    int w4 = width / 4;         /* quarter of width is used often */
+    struct yuv411 *in_even = data;
+    struct yuv411 *in_odd = in_even + w4;
+    struct yuv422 *out_even = yuv;
+    struct yuv422 *out_odd = out_even + w4;
+    int i, j;                   /* counters */
+    int u, v;                   /* U and V values */
 
-	for (i = height / 4; i--; ) {
-		for (j = w4; j--; ) {
-			u = YUV411_U00(*in_even);
-			v = YUV411_V00(*in_even);
+    for (i = height / 4; i--; ) {
+        for (j = w4; j--; ) {
+            u = YUV411_U00(*in_even);
+            v = YUV411_V00(*in_even);
 
-			YUV422_Y0(*out_even) = YUV411_Y00(*in_even);
-			YUV422_U0(*out_even) = u;
-			YUV422_V0(*out_even) = v;
-			YUV422_Y1(*out_even) = YUV411_Y02(*in_even);
+            YUV422_Y0(*out_even) = YUV411_Y00(*in_even);
+            YUV422_U0(*out_even) = u;
+            YUV422_V0(*out_even) = v;
+            YUV422_Y1(*out_even) = YUV411_Y02(*in_even);
 
-			YUV422_Y0(*out_odd) = YUV411_Y10(*in_odd);
-			YUV422_U0(*out_odd) = u;
-			YUV422_V0(*out_odd) = v;
-			YUV422_Y1(*out_odd) = YUV411_Y12(*in_odd);
+            YUV422_Y0(*out_odd) = YUV411_Y10(*in_odd);
+            YUV422_U0(*out_odd) = u;
+            YUV422_V0(*out_odd) = v;
+            YUV422_Y1(*out_odd) = YUV411_Y12(*in_odd);
 
-			in_even++;
-			in_odd++;
-			out_even++;
-			out_odd++;
-		}
-		in_even += w4;
-		in_odd += w4;
-		out_even += w4;
-		out_odd += w4;
-	}
+            in_even++;
+            in_odd++;
+            out_even++;
+            out_odd++;
+        }
+        in_even += w4;
+        in_odd += w4;
+        out_even += w4;
+        out_odd += w4;
+    }
 }
 
 void
 yuv_sv411_to_cl422dc_sixteenthsize(int invert, void *data, void *yuv,
-				   int width, int height)
+                                   int width, int height)
 {
-	int w4_3 = 3 * width / 4; /* three quarters of width is used often */
-	int w8 = width / 8;	/* and so is one eighth */
-	struct yuv411 *in_even = data;
-	struct yuv411 *in_odd = in_even + width / 2;
-	struct yuv422 *out_even = yuv;
-	struct yuv422 *out_odd = out_even + w8;
-	int i, j;		/* counters */
-	int u, v;		/* U and V values */
+    int w4_3 = 3 * width / 4; /* three quarters of width is used often */
+    int w8 = width / 8;         /* and so is one eighth */
+    struct yuv411 *in_even = data;
+    struct yuv411 *in_odd = in_even + width / 2;
+    struct yuv422 *out_even = yuv;
+    struct yuv422 *out_odd = out_even + w8;
+    int i, j;                   /* counters */
+    int u, v;                   /* U and V values */
 
-	for (i = height / 8; i--; ) {
-		for (j = w8; j--; ) {
-			u = YUV411_U00(in_even[0]);
-			v = YUV411_V00(in_even[0]);
+    for (i = height / 8; i--; ) {
+        for (j = w8; j--; ) {
+            u = YUV411_U00(in_even[0]);
+            v = YUV411_V00(in_even[0]);
 
-			YUV422_Y0(*out_even) = YUV411_Y00(in_even[0]);
-			YUV422_U0(*out_even) = u;
-			YUV422_V0(*out_even) = v;
-			YUV422_Y1(*out_even) = YUV411_Y00(in_even[1]);
+            YUV422_Y0(*out_even) = YUV411_Y00(in_even[0]);
+            YUV422_U0(*out_even) = u;
+            YUV422_V0(*out_even) = v;
+            YUV422_Y1(*out_even) = YUV411_Y00(in_even[1]);
 
-			YUV422_Y0(*out_odd) = YUV411_Y00(in_odd[0]);
-			YUV422_U0(*out_odd) = u;
-			YUV422_V0(*out_odd) = v;
-			YUV422_Y1(*out_odd) = YUV411_Y00(in_even[1]);
+            YUV422_Y0(*out_odd) = YUV411_Y00(in_odd[0]);
+            YUV422_U0(*out_odd) = u;
+            YUV422_V0(*out_odd) = v;
+            YUV422_Y1(*out_odd) = YUV411_Y00(in_even[1]);
 
-			in_even += 2;
-			in_odd += 2;
-			out_even++;
-			out_odd++;
-		}
-		in_even += w4_3;
-		in_odd += w4_3;
-		out_even += w8;
-		out_odd += w8;
-	}
+            in_even += 2;
+            in_odd += 2;
+            out_even++;
+            out_odd++;
+        }
+        in_even += w4_3;
+        in_odd += w4_3;
+        out_even += w8;
+        out_odd += w8;
+    }
 }