mpatch: reflow two oddly formatted else blocks with clang-format

mpatch: reflow two oddly formatted else blocks with clang-format

Differential Revision: https://phab.mercurial-scm.org/D1029

--- a/mercurial/mpatch.c	Wed Oct 04 10:55:51 2017 -0400
+++ b/mercurial/mpatch.c	Wed Oct 04 10:57:23 2017 -0400
@@ -78,8 +78,7 @@
 			/* save this hunk */
 			offset += s->start + s->len - s->end;
 			*d++ = *s++;
-		}
-		else {
+		} else {
 			/* break up this hunk */
 			c = cut - offset;
 			if (s->end < c)
@@ -122,8 +121,7 @@
 		if (postend <= cut) {
 			offset += s->start + s->len - s->end;
 			s++;
-		}
-		else {
+		} else {
 			c = cut - offset;
 			if (s->end < c)
 				c = s->end;