Merge branch 'maint'

* maint:
  whitespace: have SP on both sides of an assignment "="
  update-ref: whitespace fix

read-cache.c

@@ -1084,7 +1084,7 @@ static void show_file(const char * fmt, const char * name, int in_porcelain,
 {
 	if (in_porcelain && *first && header_msg) {
 		printf("%s\n", header_msg);
-		*first=0;
+		*first = 0;
 	}
 	printf(fmt, name);
 }