Fixed SD2-959: Subversion throws exception using Diff tool.

git-svn-id: svn://svn.sharpdevelop.net/sharpdevelop/trunk@1775 1ccf3a8d-04fe-1044-b7c0-cef0b8235c61

src/AddIns/Misc/SubversionAddIn/Project/Src/SvnClient.cs

@@ -168,6 +168,8 @@ namespace ICSharpCode.Svn
 			{
 				try {
 					innerDelegate();
+				} catch (ThreadAbortException) {
+					// don't show error message, silently cancel thread
 				} catch (Exception e) {
 					SvnClient.Instance.OperationDone();