t9200: do not test -x bit if the filesystem does not support it.

diff --git a/gitk b/gitk
index 33bac1f3f6ff74cda79e31589d855d62eb5cdaf8..31d0aad4502f09e26343525f985b4afffe057955 100755 (executable)
--- a/gitk
+++ b/gitk
@@ -12,7 +12,7 @@ proc gitdir {} {
     if {[info exists env(GIT_DIR)]} {
        return $env(GIT_DIR)
     } else {
-       return ".git"
+       return [exec git rev-parse --git-dir]
     }
 }
 
@@ -6193,7 +6193,7 @@ set wrcomcmd "git diff-tree --stdin -p --pretty"
 
 set gitencoding {}
 catch {
-    set gitencoding [exec git repo-config --get i18n.commitencoding]
+    set gitencoding [exec git config --get i18n.commitencoding]
 }
 if {$gitencoding == ""} {
     set gitencoding "utf-8"