git-gui: Detect full path when parsing arguments

diff --git a/lib/diff.tcl b/lib/diff.tcl
index f5ed5d1dc66844fb58a2605285eb460fe14112a4..ec4405567a9b86a9bfd8bf50815b3c9c14e2df40 100644 (file)
--- a/lib/diff.tcl
+++ b/lib/diff.tcl
@@ -309,6 +309,7 @@ proc start_show_diff {cont_info {add_opts {}}} {
 
        lappend cmd -p
        lappend cmd --color
+       set cmd [concat $cmd $repo_config(gui.diffopts)]
        if {$repo_config(gui.diffcontext) >= 1} {
                lappend cmd "-U$repo_config(gui.diffcontext)"
        }