Fix coding style

It was about damn time. Consistency is very important in such a
big codebase.

strings.c

@@ -2,6 +2,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <ctype.h>
+
 #include "util.h"
 
 static void dostrings(FILE *fp, const char *fname);