nsLocalFileWin::IsExecutable needs to trim trailing dots. After talking with dbaron, we agreeded that we shouldn't mutate the object. r=dbaron, a=dveditz

git-svn-id: svn://10.0.0.236/trunk@169132 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/xpcom/io/nsLocalFileWin.cpp

@@ -1870,8 +1870,6 @@ nsLocalFile::IsExecutable(PRBool *_retval)
     
     nsresult rv;
 
-    Normalize();
-
     // only files can be executables
     PRBool isFile;
     rv = IsFile(&isFile);
@@ -1892,6 +1890,13 @@ nsLocalFile::IsExecutable(PRBool *_retval)
     else
         GetNativePath(path);
 
+    // kill trailing dots and spaces.
+    PRInt32 filePathLen = path.Length() - 1;
+    while(filePathLen > 0 && (path[filePathLen] == ' ' || path[filePathLen] == '.'))
+    {
+        path.Truncate(filePathLen--);
+    } 
+
     // Get extension.
     char * ext = (char *) _mbsrchr((unsigned char *)path.BeginWriting(), '.');
     if ( ext ) {