Naming, layout and comments: descriptive full-word names, one item per line in wrapped calls and literals, and doc comments on exported names

Short and single-letter names in application code become full words (tests
keep theirs). Wrapped calls, signatures and composite literals put one item
per line, and one-line function bodies are expanded. Exported names and
groups of constants get doc comments, and comments refer to the renamed
identifiers.

internal/cli/config/init.go

@@ -74,7 +74,8 @@ func commandInit() *cobra.Command {
 			fmt.Print(
 				"writing default configuration to file: " +
 					viper.ConfigFileUsed() +
-					"\n")
+					"\n",
+			)
 
 			if err := viper.WriteConfig(); err != nil {
 				return err