Correct checking of virStrcpyStatic() return value

Correct the check for the return value of virStrcpyStatic()
when copying port-profile names. Fixes Open vSwitch ports
which utilize port-profiles from network definitions.
Signed-off-by: NKyle Mestery <kmestery@cisco.com>
(cherry picked from commit 83aebf6d)

src/util/virnetdevvportprofile.c

@@ -374,7 +374,7 @@ virNetDevVPortProfileMerge(virNetDevVPortProfilePtr orig,
                            orig->profileID, mods->profileID);
             return -1;
         }
-        if (virStrcpyStatic(orig->profileID, mods->profileID)) {
+        if (virStrcpyStatic(orig->profileID, mods->profileID) == NULL) {
             /* this should never happen - it indicates mods->profileID
              * isn't properly null terminated. */
             virReportError(VIR_ERR_INTERNAL_ERROR, "%s",