Short aliases for git commit --amend (bang)

With a bang (!) character we can make amending a commit intuitively dangerous.

The idea is taken from Oh-My-Zsh, https://github.com/ohmyzsh/ohmyzsh/tree/master/plugins/git

aliases/available/git.aliases.bash

@@ -32,6 +32,9 @@ alias gca='git commit -v -a'
 alias gcaa='git commit -a --amend -C HEAD' # Add uncommitted and unstaged changes to the last commit
 alias gcam='git commit -v -am'
 alias gcamd='git commit --amend'
+alias gc!='git commit -v --amend'
+alias gca!='git commit -v -a --amend'
+alias gcn!='git commit -v --amend --no-edit'
 alias gcm='git commit -v -m'
 alias gci='git commit --interactive'
 alias gcsam='git commit -S -am'