Add sha1 to brew fetch and document command

Library/Contributions/examples/brew-fetch.rb

@@ -11,7 +11,7 @@ ARGV.formulae.each do |f|
 
   the_tarball = f.downloader.fetch
   if the_tarball.kind_of? Pathname
-    md5 = the_tarball.md5
-    puts "MD5 is #{md5}"
+    puts "MD5:  #{the_tarball.md5}"
+    puts "SHA1: #{the_tarball.sha1}"
   end
 end

Library/Contributions/manpages/brew.1.md

@@ -28,7 +28,8 @@ didn't include with OS X.
 
   * `--cache` [<formula>]:
     Displays the path Homebrew uses to cache downloads.
-    If <formula> is given, display the file or folder used to cache that specific package.
+    If <formula> is given, display the file or folder used to cache that
+    specific package.
 
   * `--config`:
     Shows Homebrew and system configuration useful for debugging. If you file
@@ -146,7 +147,12 @@ didn't include with OS X.
     cellar.
 
   * `update`:
-    Using Git, fetches the newest version of Homebrew from the GitHub repository.
+    Using Git, fetches the newest version of Homebrew from the GitHub
+    repository.
+
+  * `fetch` <formula>:
+    Downloads the tarball or checks out from VCS for the given <formula>. For
+    tarballs, also prints MD5 and SHA1 checksums.
 
 ## ENVIRONMENT
 

share/man/man1/brew.1

@@ -161,6 +161,10 @@ For all installed or specific formulae, remove any older versions from the cella
 \fBupdate\fR
 Using Git, fetches the newest version of Homebrew from the GitHub repository\.
 .
+.TP
+\fBfetch\fR \fIformula\fR
+Downloads the tarball or checks out from VCS for the given \fIformula\fR\. For tarballs, also prints MD5 and SHA1 checksums\.
+.
 .SH "ENVIRONMENT"
 .
 .TP