fixup! gitk: Escape file paths before piping to git log

The patch that tried to escape the paths when refreshing was missing a
continuation. This led to the error message

	Error executing git log: wrong # args: should be "escape_filter_paths paths"

This fixes git-for-windows#2390

Signed-off-by: Johannes Schindelin <[email protected]>

Author: dscho

gitk-git/gitk

@@ -580,7 +580,7 @@ proc updatecommits {} {
 	set fd [open [concat | git log --no-color -z --pretty=raw $show_notes \
 			--parents --boundary $args --stdin \
 			"<<[join [concat $revs "--" \
-				[escape_filter_paths
+				[escape_filter_paths \
 					$vfilelimit($view)]] "\\n"]"] r]
     } err]} {
 	error_popup "[mc "Error executing git log:"] $err"