Change --nogit flag to --no-git-tag for clarity

Renamed the command-line flag from --nogit to --no-git-tag to make
it clearer what the flag does (skips creating a git tag). The internal
parameter name remains 'nogit' for backward compatibility.

Updated documentation to reflect the new flag name.

Author: grizz

docs/plugins/version.md

@@ -54,9 +54,8 @@ You may also choose to bump but not tag in git
 
 ```sh
 # update Ctl/VERSION to 1.1.0
-# tag v1.1.0
-# push tag
-ctl version bump --nogit
+# skip creating git tag
+ctl version bump --no-git-tag
 ```
 
 ### Use existing repository checkout

src/ctl/plugins/version_base.py

@@ -126,9 +126,10 @@ def add_arguments(cls, parser, plugin_config, confu_cli_args):
             help="bumps the specified version segment by 1",
         )
         op_bump_parser.add_argument(
-            "--nogit",
+            "--no-git-tag",
+            dest="nogit",
             action="store_true",
-            help="whether to tag or not to tag (default: False)",
+            help="skip creating a git tag (default: False)",
             default=False,
         )