rdppm.c: formatting tweaks
diff --git a/rdppm.c b/rdppm.c
index 2e9b54d..c4aed8e 100644
--- a/rdppm.c
+++ b/rdppm.c
@@ -386,7 +386,7 @@
   /* Allocate space for I/O buffer: 1 or 3 bytes or words/pixel. */
   if (need_iobuffer) {
     source->buffer_width = (size_t) w * cinfo->input_components *
-      ((maxval<=255) ? sizeof(U_CHAR) : (2*sizeof(U_CHAR)));
+      ((maxval <= 255) ? sizeof(U_CHAR) : (2 * sizeof(U_CHAR)));
     source->iobuffer = (U_CHAR *)
       (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
                                   source->buffer_width);
@@ -414,11 +414,13 @@
     /* On 16-bit-int machines we have to be careful of maxval = 65535 */
     source->rescale = (JSAMPLE *)
       (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-                                  (size_t) (((long) maxval + 1L) * sizeof(JSAMPLE)));
+                                  (size_t) (((long) maxval + 1L) *
+                                            sizeof(JSAMPLE)));
     half_maxval = maxval / 2;
     for (val = 0; val <= (INT32) maxval; val++) {
       /* The multiplication here must be done in 32 bits to avoid overflow */
-      source->rescale[val] = (JSAMPLE) ((val*MAXJSAMPLE + half_maxval)/maxval);
+      source->rescale[val] = (JSAMPLE) ((val * MAXJSAMPLE + half_maxval) /
+                                        maxval);
     }
   }
 }