fsck: introduce `git fsck --connectivity-only`

diff --git a/contrib/examples/git-commit.sh b/contrib/examples/git-commit.sh
index 4aab1a6d2161186227779ca5e793ed727c64d9db..934505bab9e6cf04a3536010ac31b1795c852c9f 100755 (executable)
--- a/contrib/examples/git-commit.sh
+++ b/contrib/examples/git-commit.sh
@@ -51,7 +51,7 @@ run_status () {
                export GIT_INDEX_FILE
        fi
 
-       if test "$status_only" = "t" -o "$use_status_color" = "t"; then
+       if test "$status_only" = "t" || test "$use_status_color" = "t"; then
                color=
        else
                color=--nocolor
@@ -91,7 +91,7 @@ signoff=
 force_author=
 only_include_assumed=
 untracked_files=
-templatefile="`git config commit.template`"
+templatefile="$(git config commit.template)"
 while test $# != 0
 do
        case "$1" in
@@ -296,7 +296,7 @@ t,,,[1-9]*)
        die "No paths with -i does not make sense." ;;
 esac
 
-if test ! -z "$templatefile" -a -z "$log_given"
+if test ! -z "$templatefile" && test -z "$log_given"
 then
        if test ! -f "$templatefile"
        then
@@ -350,7 +350,7 @@ t,)
                TMP_INDEX="$GIT_DIR/tmp-index$$"
                W=
                test -z "$initial_commit" && W=--with-tree=HEAD
-               commit_only=`git ls-files --error-unmatch $W -- "$@"` || exit
+               commit_only=$(git ls-files --error-unmatch $W -- "$@") || exit
 
                # Build a temporary index and update the real index
                # the same way.
@@ -475,8 +475,8 @@ then
 fi
 if test '' != "$force_author"
 then
-       GIT_AUTHOR_NAME=`expr "z$force_author" : 'z\(.*[^ ]\) *<.*'` &&
-       GIT_AUTHOR_EMAIL=`expr "z$force_author" : '.*\(<.*\)'` &&
+       GIT_AUTHOR_NAME=$(expr "z$force_author" : 'z\(.*[^ ]\) *<.*') &&
+       GIT_AUTHOR_EMAIL=$(expr "z$force_author" : '.*\(<.*\)') &&
        test '' != "$GIT_AUTHOR_NAME" &&
        test '' != "$GIT_AUTHOR_EMAIL" ||
        die "malformed --author parameter"
@@ -489,7 +489,7 @@ then
        rloga='commit'
        if [ -f "$GIT_DIR/MERGE_HEAD" ]; then
                rloga='commit (merge)'
-               PARENTS="-p HEAD "`sed -e 's/^/-p /' "$GIT_DIR/MERGE_HEAD"`
+               PARENTS="-p HEAD "$(sed -e 's/^/-p /' "$GIT_DIR/MERGE_HEAD")
        elif test -n "$amend"; then
                rloga='commit (amend)'
                PARENTS=$(git cat-file commit HEAD |