kreadconfig: return 0 when no groups where processed

Signed-off-by: Ivailo Monev <xakepa10@gmail.com>

kreadconfig/kreadconfig.cpp

@@ -129,5 +129,8 @@ int main(int argc, char **argv)
             return 0;
         }
     }
+
+    // Questionably, success
+    return 0;
 }
 

kreadconfig/kwriteconfig.cpp

@@ -94,5 +94,8 @@ int main(int argc, char **argv)
         delete konfig;
         return 0;
     }
+
+    // Questionably, success
+    return 0;
 }