fix exit()

src/pmng.cr

@@ -29,21 +29,21 @@ begin
 
     parser.on "-v", "--version", "Show version" do
       puts "Version #{VERSION}"
-      exit
+      exit(0)
     end
     parser.on "-h", "--help", "Show help" do
       puts parser
-      exit
+      exit(0)
     end
     parser.on "-g", "--generate-password", "Generate password" do
       puts Random::Secure.urlsafe_base64(16, padding: false).colorize(:black).back(:white)
       puts Random::Secure.urlsafe_base64(16, padding: false).colorize(:white).back(:red)
       puts Random::Secure.urlsafe_base64(16, padding: false).colorize(:white).back(:blue)
-      exit
+      exit(0)
     end
     parser.on "-t", "--unixtime", "Return local timestamp" do
       puts Time.local.to_unix.colorize(:yellow)
-      exit
+      exit(0)
     end
   end
 rescue ex
@@ -74,7 +74,7 @@ while loop
 
   if password_string.to_s == ":q"
     puts "Bye! 👋🏻"
-    exit
+    exit(0)
   elsif password_string.to_s == ":h"
     puts "Help:\n-----"
     puts ":s - Return stats"