* Expand documentation a bit

* Cast to boolean, since those functions should return boolean

diff --git a/includes/Title.php b/includes/Title.php
index 3feba53..09d68b2 100644 (file)
--- a/includes/Title.php
+++ b/includes/Title.php
@@ -3645,7 +3645,7 @@ class Title {
                        // the full l10n of that language to be loaded. That takes much memory and
                        // isn't needed. So we strip the language part away.
                        list( $basename, /* rest */ ) = explode( '/', $this->mDbkeyform, 2 );
-                       return wfMsgWeirdKey( $basename );  // known system message
+                       return (bool)wfMsgWeirdKey( $basename );  // known system message
                default:
                        return false;
                }
@@ -3673,11 +3673,13 @@ class Title {
                        return true;
 
                if ( $this->mNamespace == NS_MEDIAWIKI ) {
-                       // If the page is form Mediawiki:message/lang, calling wfMsgWeirdKey causes
-                       // the full l10n of that language to be loaded. That takes much memory and
-                       // isn't needed. So we strip the language part away.
+                       // If the page doesn't exist but is a known system message, default
+                       // message content will be displayed, same for language subpages
+                       // Also, if the page is form Mediawiki:message/lang, calling wfMsgWeirdKey
+                       // causes the full l10n of that language to be loaded. That takes much
+                       // memory and isn't needed. So we strip the language part away.
                        list( $basename, /* rest */ ) = explode( '/', $this->mDbkeyform, 2 );
-                       return wfMsgWeirdKey( $basename );  // known system message
+                       return (bool)wfMsgWeirdKey( $basename );
                }
 
                return false;