gsu/gui: Fix regex for tree walk.

If one directory name is a suffix of another, the regex
for grep found both, which is bad.

diff --git a/misc/gsu/gui b/misc/gsu/gui
index 5b108e1ad4521d74ec5a8b6a16c061484c8a0cef..12c8b8b7685f346e7bccb0ff4aecd5788350f01b 100644 (file)
--- a/misc/gsu/gui
+++ b/misc/gsu/gui
@@ -154,7 +154,7 @@ _get_subtree()
        local tree="$1" root="${2%/}"
        local TAB='     '
 
-       first="$(grep -n "$root/" <<< "$tree")"
+       first="$(grep -n "$TAB\{1,\}$root/" <<< "$tree")"
        [[ -z "$first" ]] && return
 
        line_num="${first%%:*}"