fixed warnings

plugins/squirrelspell/modules/check_me.mod

@@ -163,13 +163,15 @@ for ($i=0; $i<sizeof($sqspell_output); $i++){
      */
     if (!$SQSPELL_EREG("\n$sqspell_word\n", $words)){
       $sqspell_symb=intval($tmparray[3])-1;
-      if (!$misses[$sqspell_word]) {
+      if (!isset($misses[$sqspell_word])) {
         $misses[$sqspell_word] = $right;
         $missed_words[$errors] = $sqspell_word;
         $errors++;
       }
-      if ($locations[$sqspell_word]){
+      if (isset($locations[$sqspell_word])){
         $locations[$sqspell_word] .= ', ';
+      } else { 
+        $locations[$sqspell_word] = '';
       }
       $locations[$sqspell_word] .= "$current_line:$sqspell_symb";
     }

plugins/squirrelspell/modules/edit_dic.mod

@@ -51,7 +51,7 @@ if (!$words){
        * language we're processing, prepend the output with the
        * "header" message.
        */
-      if (!$msg) {
+      if (!isset($msg) || !$msg) {
 	$msg = $pre_msg;
       }
       $msg .= "<tr bgcolor=\"$color[0]\" align=\"center\"><th>"