remove underscore workaround now that '!' works

tools/mvn.ion

@@ -38,7 +38,7 @@ end
 alias mvn="mvn_or_mvnw"
 
 # Run mvn against the pom found in a project's root directory (assumes a git repo)
-alias mvn_ = 'mvn -f $(git rev-parse --show-toplevel ^>/dev/null || echo ".")/pom.xml'
+alias mvn! = 'mvn -f $(git rev-parse --show-toplevel ^>/dev/null || echo ".")/pom.xml'
 
 # aliases
 alias mvnag = 'mvn archetype:generate'

version-control/git.ion

@@ -47,12 +47,12 @@ alias gbsr = 'git bisect reset'
 alias gbss = 'git bisect start'
 
 alias gc = 'git commit -v'
-alias gc_ = 'git commit -v --amend'
-alias gcn_ = 'git commit -v --no-edit --amend'
+alias gc! = 'git commit -v --amend'
+alias gcn! = 'git commit -v --no-edit --amend'
 alias gca = 'git commit -v -a'
-alias gca_ = 'git commit -v -a --amend'
-alias gcan_ = 'git commit -v -a --no-edit --amend'
-alias gcans_ = 'git commit -v -a -s --no-edit --amend'
+alias gca! = 'git commit -v -a --amend'
+alias gcan! = 'git commit -v -a --no-edit --amend'
+alias gcans! = 'git commit -v -a -s --no-edit --amend'
 alias gcam = 'git commit -a -m'
 alias gcsm = 'git commit -s -m'
 alias gcb = 'git checkout -b'
@@ -129,7 +129,7 @@ alias gma = 'git merge --abort'
 alias gp = 'git push'
 alias gpd = 'git push --dry-run'
 alias gpf = 'git push --force-with-lease'
-alias gpf_ = 'git push --force'
+alias gpf! = 'git push --force'
 alias gpoat = 'git push origin --all && git push origin --tags'
 alias gpu = 'git push upstream'
 alias gpv = 'git push -v'