flag: better documentation

Author: catenacyber

README.md

@@ -17,6 +17,8 @@ go get github.com/catenacyber/perfsprint@latest
 perfsprint --fix ./...
 ```
 
+To disable int/uint cast, you can use flag `-int-conversion=false`
+
 ### Replacements
 
 ```

analyzer/analyzer.go

@@ -30,7 +30,7 @@ func New() *analysis.Analyzer {
 		Run:      n.run,
 		Requires: []*analysis.Analyzer{inspect.Analyzer},
 	}
-	r.Flags.BoolVar(&n.intConv, "int-conversion", true, "optimizes even if it needs an int conversion")
+	r.Flags.BoolVar(&n.intConv, "int-conversion", true, "optimizes even if it requires an int or uint type cast")
 	return r
 }