forward port (part I forgot with the previous commit)

by burghard:

Make sure no empty imap path is set/saved and issue a warning in this case. 
Please check your logfiles if you get this warning.


svn path=/trunk/KDE/kdepim/; revision=459041

kmfolderimap.cpp

@@ -2263,4 +2263,14 @@ void KMFolderImap::saveMsgMetaData( KMMessage* msg, ulong uid )
   mUidMetaDataMap.replace( uid, new KMMsgMetaData(msg->status(), serNum) );
 }
 
+//-----------------------------------------------------------------------------
+void KMFolderImap::setImapPath( const QString& path )
+{
+  if ( path.isEmpty() ) {
+    kdWarning(5006) << k_funcinfo << "ignoring empty path";
+  } else {
+    mImapPath = path;
+  }
+}
+
 #include "kmfolderimap.moc"

kmfolderimap.h

@@ -106,7 +106,7 @@ public:
 
   virtual KMMessage* getMsg(int idx);
   /** The path to the imap folder on the server */
-  void setImapPath(const QString &path) { mImapPath = path; }
+  void setImapPath( const QString &path );
   QString imapPath() { return mImapPath; }
 
   /** The highest UID in the folder */