Merge #3181

3181: Add ability to pass additional arguments to rustfmt. r=matklad a=Leonqn

relates to #2848

Co-authored-by: Ilya Titkov <ilya@titkov.me>

editors/code/src/config.ts

@@ -148,7 +148,8 @@ export class Config {
     get excludeGlobs()          { return this.cfg.get("excludeGlobs") as string[]; }
     get useClientWatching()     { return this.cfg.get("useClientWatching") as boolean; }
     get featureFlags()          { return this.cfg.get("featureFlags") as Record<string, boolean>; }
-
+    get rustfmtArgs()           { return this.cfg.get("rustfmtArgs") as string[]; }
+    
     get cargoWatchOptions(): CargoWatchOptions {
         return {
             enable:     this.cfg.get("cargo-watch.enable") as boolean,