documentation: clarify read-tree --reset

diff --git a/git-tag.sh b/git-tag.sh
index e71028695c935c6c757ac168f1c9a1670076b29d..2435a75f7a9414bdceb1cef308a99918784f5421 100755 (executable)
--- a/git-tag.sh
+++ b/git-tag.sh
@@ -8,6 +8,11 @@ usage () {
     exit 1
 }
 
+die () {
+    echo >&2 "$*"
+    exit 1
+}
+
 annotate=
 signed=
 force=