bootstrap: check for git tree with .git/. in case of soft links.

* gl/build-aux/bootstrap.in (func_require_git): Use
`test -d .git/.` to defeat soft-links versus non-GNU test.
* bootstrap: Regenerate.
* THANKS: Remove duplicate Bruce Korb entry.

Copyright-paperwork-exempt: Yes
Signed-off-by: Gary V. Vaughan <gary@gnu.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/bootstrap b/bootstrap
index 4e24dbf4..feb20a18 100755
--- a/bootstrap
+++ b/bootstrap
@@ -3698,7 +3698,7 @@ func_require_git ()
     $opt_skip_git && GIT=true
 
     test true = "$GIT" || {
-      if test -d .git; then
+      if test -d .git/.; then
         ($GIT --version) >/dev/null 2>&1 || GIT=true
       fi
     }