bpo-32150: Expand tabs to spaces in C files. (#4583)

diff --git a/Python/dup2.c b/Python/dup2.c
index 2579afd..7c6bbfc 100644
--- a/Python/dup2.c
+++ b/Python/dup2.c
@@ -19,13 +19,13 @@
 int
 dup2(int fd1, int fd2)
 {
-	if (fd1 != fd2) {
-		if (fcntl(fd1, F_GETFL) < 0)
-			return BADEXIT;
-		if (fcntl(fd2, F_GETFL) >= 0)
-			close(fd2);
-		if (fcntl(fd1, F_DUPFD, fd2) < 0)
-			return BADEXIT;
-	}
-	return fd2;
+    if (fd1 != fd2) {
+        if (fcntl(fd1, F_GETFL) < 0)
+            return BADEXIT;
+        if (fcntl(fd2, F_GETFL) >= 0)
+            close(fd2);
+        if (fcntl(fd1, F_DUPFD, fd2) < 0)
+            return BADEXIT;
+    }
+    return fd2;
 }
diff --git a/Python/getplatform.c b/Python/getplatform.c
index 6899140..81a0f7a 100644
--- a/Python/getplatform.c
+++ b/Python/getplatform.c
@@ -8,5 +8,5 @@
 const char *
 Py_GetPlatform(void)
 {
-	return PLATFORM;
+    return PLATFORM;
 }
diff --git a/Python/getversion.c b/Python/getversion.c
index 7bd6efd..c32b6f9 100644
--- a/Python/getversion.c
+++ b/Python/getversion.c
@@ -8,8 +8,8 @@
 const char *
 Py_GetVersion(void)
 {
-	static char version[250];
-	PyOS_snprintf(version, sizeof(version), "%.80s (%.80s) %.80s",
-		      PY_VERSION, Py_GetBuildInfo(), Py_GetCompiler());
-	return version;
+    static char version[250];
+    PyOS_snprintf(version, sizeof(version), "%.80s (%.80s) %.80s",
+                  PY_VERSION, Py_GetBuildInfo(), Py_GetCompiler());
+    return version;
 }
diff --git a/Python/pyfpe.c b/Python/pyfpe.c
index ab0ef83..925fa46 100644
--- a/Python/pyfpe.c
+++ b/Python/pyfpe.c
@@ -19,5 +19,5 @@
 double
 PyFPE_dummy(void *dummy)
 {
-	return 1.0;
+    return 1.0;
 }
diff --git a/Python/pystrhex.c b/Python/pystrhex.c
index 1259ed1..6dbf32d 100644
--- a/Python/pystrhex.c
+++ b/Python/pystrhex.c
@@ -16,14 +16,14 @@
     if (return_bytes) {
         /* If _PyBytes_FromSize() were public we could avoid malloc+copy. */
         retbuf = (Py_UCS1*) PyMem_Malloc(arglen*2);
-	if (!retbuf)
-	    return PyErr_NoMemory();
+        if (!retbuf)
+            return PyErr_NoMemory();
         retval = NULL;  /* silence a compiler warning, assigned later. */
     } else {
-	retval = PyUnicode_New(arglen*2, 127);
-	if (!retval)
-	    return NULL;
-	retbuf = PyUnicode_1BYTE_DATA(retval);
+        retval = PyUnicode_New(arglen*2, 127);
+        if (!retval)
+            return NULL;
+        retbuf = PyUnicode_1BYTE_DATA(retval);
     }
 
     /* make hex version of string, taken from shamodule.c */
diff --git a/Python/strdup.c b/Python/strdup.c
index 769d3db..99dc774 100644
--- a/Python/strdup.c
+++ b/Python/strdup.c
@@ -5,10 +5,10 @@
 char *
 strdup(const char *str)
 {
-	if (str != NULL) {
-		char *copy = malloc(strlen(str) + 1);
-		if (copy != NULL)
-			return strcpy(copy, str);
-	}
-	return NULL;
+    if (str != NULL) {
+        char *copy = malloc(strlen(str) + 1);
+        if (copy != NULL)
+            return strcpy(copy, str);
+    }
+    return NULL;
 }