kiss: use GitHub CI

.github/workflows/main.yml

@@ -0,0 +1,13 @@
+name: Shellcheck
+
+on: [push]
+
+jobs:
+    build:
+
+        runs-on: ubuntu-latest
+
+        steps:
+            - uses: actions/checkout@v1
+            - name: Run shellcheck.
+              run: shellcheck kiss

.travis.yml

@@ -1,10 +0,0 @@
-language: bash
-
-install:
-  # Install a custom version of shellcheck instead of Travis CI's default
-  - scversion=latest
-  - wget "https://storage.googleapis.com/shellcheck/shellcheck-${scversion}.linux.x86_64.tar.xz"
-  - tar --xz -xvf "shellcheck-${scversion}.linux.x86_64.tar.xz"
-  - shellcheck() { "shellcheck-${scversion}/shellcheck" "$@"; }
-
-script: shellcheck kiss

kiss

@@ -1051,7 +1051,7 @@ args() {
                 pkg_list "$pkg" >/dev/null ||
                     die "[$pkg] Not installed"
 
-                pkg_remove "$pkg" check
+                pkg_remove "$pkg" "${KISS_FORCE:-check}"
             done
         ;;