[patch]rcs: memcmp against 0

[Fritjof Bornebusch]

Hi,

it's better to compare memcmp against 0, for clarity.

fritjof


Index: diff3.c
===================================================================
RCS file: /cvs/src/usr.bin/rcs/diff3.c,v
retrieving revision 1.33
diff -u -p -r1.33 diff3.c
--- diff3.c     4 Mar 2012 04:05:15 -0000       1.33
+++ diff3.c     21 Jun 2014 21:03:30 -0000
@@ -517,7 +517,7 @@ ed_patch_lines(struct rcs_lines *dlines,
                                if (lp == NULL)
                                        errx(1, "ed_patch_lines");
 
-                               if (!memcmp(lp->l_line, ".", 1))
+                               if (memcmp(lp->l_line, ".", 1) == 0)
                                        break;
 
                                TAILQ_REMOVE(&(plines->l_lines), lp, l_list);