use streq instead of strcmp

src/journal/test-journal-syslog.c

@@ -31,8 +31,8 @@ static void test_syslog_parse_identifier(const char* str,
         ret2 = syslog_parse_identifier(&buf, &ident2, &pid2);
 
         assert(ret == ret2);
-        assert(ident==ident2 || !strcmp(ident, ident2));
-        assert(pid==pid2 || !strcmp(pid, pid2));
+        assert(ident==ident2 || streq(ident, ident2));
+        assert(pid==pid2 || streq(pid, pid2));
 }
 
 int main(void) {