util: Tweak virStringMatchesNameSuffix()

We can use STRNEQ() instead of STRNEQLEN() since we're only
interested in the trailing part of the string and we've
already verified that the length of file, name and suffix
are those we expect.
Signed-off-by: NAndrea Bolognani <abologna@redhat.com>
ACKed-by: NPeter Krempa <pkrempa@redhat.com>

src/util/virstring.c

@@ -1290,7 +1290,7 @@ virStringMatchesNameSuffix(const char *file,
 
     if (filelen == (namelen + suffixlen) &&
         STREQLEN(file, name, namelen) &&
-        STREQLEN(file + namelen, suffix, suffixlen))
+        STREQ(file + namelen, suffix))
         return true;
     else
         return false;