maint: avoid new syntax-check failure

* src/diff.c (specify_value): Use !STREQ(...), not strcmp(...) != 0.
* src/diff3.c (main): Likewise.

2 files changed, 2 insertions, 2 deletions

diff --git a/src/diff.c b/src/diff.c
index 0992db9..0a25465 100644
--- a/src/diff.c
+++ b/src/diff.c
@@ -959,7 +959,7 @@ usage (void)
 static void
 specify_value (char const **var, char const *value, char const *option)
 {
-  if (*var && strcmp (*var, value) != 0)
+  if (*var && ! STREQ (*var, value))
     {
       error (0, 0, _("conflicting %s option value `%s'"), option, value);
       try_help (NULL, NULL);
diff --git a/src/diff3.c b/src/diff3.c
index be36ad1..44bc17f 100644
--- a/src/diff3.c
+++ b/src/diff3.c
@@ -362,7 +362,7 @@ main (int argc, char **argv)
     rev_mapping[mapping[i]] = i;
 
   for (i = 0; i < 3; i++)
-    if (strcmp (file[i], "-") != 0)
+    if (! STREQ (file[i], "-"))
       {
 	if (stat (file[i], &statb) < 0)
 	  perror_with_exit (file[i]);