feat: automatically enforce strict mode if -c options are given on …

…the command-line.

This should stop most mistakes right away, instead of possibly silently
ignoring them depending on what was hard-coded in the respective sub-command.

src/plumbing/main.rs

@@ -83,8 +83,15 @@ pub fn main() -> Result<()> {
 
     let repository = {
         let config = config.clone();
-        move |mode: Mode| -> Result<gix::Repository> {
+        move |mut mode: Mode| -> Result<gix::Repository> {
             let mut mapping: gix::sec::trust::Mapping<gix::open::Options> = Default::default();
+            if !config.is_empty() {
+                mode = match mode {
+                    Mode::Lenient => Mode::Strict,
+                    Mode::LenientWithGitInstallConfig => Mode::StrictWithGitInstallConfig,
+                    _ => mode,
+                };
+            }
             let strict_toggle = matches!(mode, Mode::Strict | Mode::StrictWithGitInstallConfig) || args.strict;
             mapping.full = mapping.full.strict_config(strict_toggle);
             mapping.reduced = mapping.reduced.strict_config(strict_toggle);