bin/git: fix little script issues

.local/bin/scripts/git-l

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 git rev-parse @{upstream} >/dev/null 2>&1 ||
 	git branch --set-upstream-to=@{push}
 git pull --rebase --autostash "$@" 2> >(head -3 >&2) ||

.local/bin/scripts/git-unamend

@@ -1,5 +1,5 @@
 #!/bin/sh
 # Remove the given files from the last commit
-#git diff -p HEAD~ -- "$@" | git apply --reverse --cached
+# https://stackoverflow.com/a/70197343
 git reset HEAD~ "$@"
-git commit --amend
+git commit -v --amend