Rename "review"->"pr"

The current functionality should really be moved to "hub pr checkout".
This is a step on the way.

Makefile

@@ -8,7 +8,7 @@ HELP_CMD = \
 	share/man/man1/hub-compare.1 \
 	share/man/man1/hub-create.1 \
 	share/man/man1/hub-fork.1 \
-	share/man/man1/hub-review.1 \
+	share/man/man1/hub-pr.1 \
 	share/man/man1/hub-pull-request.1 \
 	share/man/man1/hub-release.1 \
 	share/man/man1/hub-issue.1 \

commands/help.go

@@ -166,7 +166,7 @@ var helpText = `
 These GitHub commands are provided by hub:
 
    pull-request   Open a pull request on GitHub
-   review         Get the source code for a pull request
+   pr             Work with pull requests
    fork           Make a fork of a remote repository on GitHub and add as remote
    create         Create this repository on GitHub and add GitHub as origin
    browse         Open a GitHub page in the default browser

commands/review.go → commands/pr.go

@@ -8,27 +8,27 @@ import (
 	"github.com/github/hub/utils"
 )
 
-var cmdReview = &Command{
-	Run:   review,
-	Usage: "review <PULLREQ-NUMBER> [<BRANCH>]",
+var cmdPr = &Command{
+	Run:   pr,
+	Usage: "pr <PULLREQ-NUMBER> [<BRANCH>]",
 	Long: `Check out the head of a pull request as a local branch.
 
 ## Examples:
-		$ hub review 73
+		$ hub pr 73
 		> git fetch origin pull/73/head:jingweno-feature
 		> git checkout jingweno-feature
 
 ## See also:
 
-hub-merge(1), hub-am(1), hub(1), git-checkout(1)
+hub-merge(1), hub(1), hub-checkout(1)
 `,
 }
 
 func init() {
-	CmdRunner.Use(cmdReview)
+	CmdRunner.Use(cmdPr)
 }
 
-func review(command *Command, args *Args) {
+func pr(command *Command, args *Args) {
 	if args.ParamsSize() < 1 || args.ParamsSize() > 2 {
 		utils.Check(fmt.Errorf("Error: Expected one or two arguments, got %d", args.ParamsSize()))
 	}