fix coverity warnings

src/attributes/key.c

@@ -102,9 +102,13 @@ static void a_upgradekeys(attrib **alist, attrib *abegin) {
             ak = a_add(alist, a_new(&at_keys));
         }
     }
+    if (ak) {
         ak->data.v = keys;
+        if (keys) {
             keys[0] = n + i;
         }
+    }
+}
 
 attrib_type at_key = {
     "key",

src/kernel/version.c

@@ -11,8 +11,9 @@
 const char *eressea_version(void) {
 #ifdef ERESSEA_BUILDNO
     return ERESSEA_VERSION "-" ERESSEA_BUILDNO;
-#endif
+#else
     return ERESSEA_VERSION;
+#endif
 }
 
 int version_no(const char *str) {