Add "r" alias for require (#10953)

Co-authored-by: a.dmitryuk <a.dmitryuk@movavi.com>

doc/03-cli.md

@@ -226,7 +226,7 @@ and this feature is only available for your root package dependencies.
 
 Specifying one of the words `mirrors`, `lock`, or `nothing` as an argument has the same effect as specifying the option `--lock`, for example `composer update mirrors` is exactly the same as `composer update --lock`.
 
-## require
+## require / r
 
 The `require` command adds new packages to the `composer.json` file from
 the current directory. If no file exists one will be created on the fly.

src/Composer/Command/RequireCommand.php

@@ -67,6 +67,7 @@ class RequireCommand extends BaseCommand
     {
         $this
             ->setName('require')
+            ->setAliases(array('r'))
             ->setDescription('Adds required packages to your composer.json and installs them.')
             ->setDefinition(array(
                 new InputArgument('packages', InputArgument::IS_ARRAY | InputArgument::OPTIONAL, 'Optional package name can also include a version constraint, e.g. foo/bar or foo/bar:1.0.0 or foo/bar=1.0.0 or "foo/bar 1.0.0"', null, $this->suggestAvailablePackageInclPlatform()),