Merge branch 'feature--improve_clone_errors'

diff --combined vcsh
index ea748357b20974a56e289f6e601696a113d05d02,cacd1b1bd19c63484881767a91fb9684aa4f39c0..a12bc4962f9f8b31cc14b03fe3739d9213e4606f
--- 1/vcsh
--- 2/vcsh
+++ b/vcsh
@@@ -24,7 -24,6 +24,7 @@@ SELF=$(basename $0
  
  fatal() {
        echo "$SELF: fatal: $1" >&2
 +      [ -z $2] && exit 1
        exit $2
  }
  
@@@ -149,9 -148,10 +149,10 @@@ clone() 
        git remote add origin "$GIT_REMOTE"
        git config branch.master.remote origin
        git config branch.master.merge  refs/heads/master
-       if [ $(git ls-remote origin master 2> /dev/null | wc -l ) -lt 1 ]; then
-               info "remote is empty, not merging anything"
-               exit
+       VCSH_CLONE_ERROR=$(git ls-remote origin master 2>&1)
+       if [ -n "$VCSH_CLONE_ERROR" ]; then
+               rm -rf "$GIT_DIR"
+               fatal "$VCSH_CLONE_ERROR" 1
        fi
        git fetch
        hook pre-merge