Fixed '--libraries' and '--library' flags description in compile command.

Author: cmaglie

Diff for: cli/compile/compile.go

@@ -116,9 +116,9 @@ func NewCommand() *cobra.Command {
 	compileCommand.Flags().BoolVarP(&verify, "verify", "t", false, tr("Verify uploaded binary after the upload."))
 	compileCommand.Flags().StringVar(&vidPid, "vid-pid", "", tr("When specified, VID/PID specific build properties are used, if board supports them."))
 	compileCommand.Flags().StringSliceVar(&library, "library", []string{},
-		tr("List of paths to libraries root folders. Libraries set this way have top priority in case of conflicts. Can be used multiple times for different libraries."))
+		tr("Path to a single library’s root folder. Overrides other occurrences of the library found in default libraries folder or passed in via --libraries. Can be used multiple times or entries can be comma separated."))
 	compileCommand.Flags().StringSliceVar(&libraries, "libraries", []string{},
-		tr("List of custom libraries dir paths separated by commas. Or can be used multiple times for multiple libraries dir paths."))
+		tr("Path to a collection of libraries. Contained libraries override the ones found in the default libraries folder. Can be used multiple times or entries can be comma separated."))
 	compileCommand.Flags().BoolVar(&optimizeForDebug, "optimize-for-debug", false, tr("Optional, optimize compile output for debugging, rather than for release."))
 	programmer.AddToCommand(compileCommand)
 	compileCommand.Flags().BoolVar(&compilationDatabaseOnly, "only-compilation-database", false, tr("Just produce the compilation database, without actually compiling. All build commands are skipped except pre* hooks."))

Diff for: rpc/cc/arduino/cli/commands/v1/commands_grpc.pb.go

@@ -57,7 +57,7 @@ message CompileRequest {
   // If jobs is set to 0, it will use the number of available CPUs as the
   // maximum.
   int32 jobs = 14;
-  // List of custom libraries dir paths.
+  // A list of paths to directories containing a collection of libraries.
   repeated string libraries = 15;
   // Optimize compile output for debug, not for release.
   bool optimize_for_debug = 16;
@@ -78,7 +78,7 @@ message CompileRequest {
   // When set to `true` the compiled binary will be copied to the export
   // directory.
   google.protobuf.BoolValue export_binaries = 23;
-  // List of paths to library root folders
+  // A list of paths to single libraries root directory.
   repeated string library = 24;
   // The path where to search for the custom signing key name and the encrypt
   // key name