chore: edit test/output.sh comply with POSIX (#391)

Co-authored-by: Viktor Luft <viktor.luft@freiheit.com>

test/output.sh

@@ -1,58 +1,58 @@
 #!/bin/bash
 
-function desc() {
-	echo "\033[01;38;5;022m############### $1 ###############\033[0m"
+make_title() {
+	printf '\033[01;38;5;022m############### %s ###############\033[0m\n' "$1"
 }
 
-desc "LIST"
+make_title "LIST"
 ./bin/cli.js lib/api.js
 
-desc "SUMMARY"
+make_title "SUMMARY"
 ./bin/cli.js lib/api.js -s
 
-desc "DEPENDS"
+make_title "DEPENDS"
 ./bin/cli.js lib/api.js -d log.js
 
-desc "CIRCULAR (OK)"
+make_title "CIRCULAR (OK)"
 ./bin/cli.js test/cjs/a.js -c
 
-desc "CIRCULAR (FOUND, NO INDEX COUNTING)"
+make_title "CIRCULAR (FOUND, NO INDEX COUNTING)"
 ./bin/cli.js test/cjs/circular/a.js -c --no-count
 
-desc "CIRCULAR (FOUND, WITH INDEX COUNT)"
+make_title "CIRCULAR (FOUND, WITH INDEX COUNT)"
 ./bin/cli.js test/cjs/circular/a.js -c
 
-desc "NPM"
+make_title "NPM"
 ./bin/cli.js test/cjs/npm.js --include-npm
 
-desc "STDIN"
+make_title "STDIN"
 ./bin/cli.js --json lib/api.js | tr '[a-z]' '[A-Z]' | ./bin/cli.js --stdin
 
-desc "IMAGE"
+make_title "IMAGE"
 ./bin/cli.js lib/api.js --image /tmp/test.svg
 
-desc "DOT"
+make_title "DOT"
 ./bin/cli.js lib/api.js --dot
 
-desc "JSON"
+make_title "JSON"
 ./bin/cli.js lib/api.js --json
 
-desc "NO COLOR"
+make_title "NO COLOR"
 ./bin/cli.js lib/api.js --no-color
 
-desc "SHOW EXTENSION"
+make_title "SHOW EXTENSION"
 ./bin/cli.js lib/api.js --show-extension
 
-desc "WARNINGS (NOTE)"
+make_title "WARNINGS (NOTE)"
 ./bin/cli.js test/cjs/missing.js -c
 
-desc "WARNINGS (LIST)"
+make_title "WARNINGS (LIST)"
 ./bin/cli.js test/cjs/missing.js -c --warning
 
-desc "ERROR"
+make_title "ERROR"
 ./bin/cli.js file/not/found.js
 
-desc "DEBUG"
+make_title "DEBUG"
 ./bin/cli.js lib/log.js --debug
 
 exit 0