bottle_version: support openssl style

Library/Homebrew/bottle_version.rb

@@ -7,6 +7,10 @@ class BottleVersion < Version
     m = /[a-z]{3}\d-(\d{1}-\d{8})/.match(stem)
     return m.captures.first unless m.nil?
 
+    # e.g. 1.0.2a-1 from openssl-1.0.2a-1.yosemite.bottle.1.tar.gz
+    m = /-(\d+\.\d+(\.\d+)+[a-z]-\d+)/.match(stem)
+    return m.captures.first unless m.nil?
+
     # e.g. perforce-2013.1.610569-x86_64.mountain_lion.bottle.tar.gz
     m = /-([\d\.]+-x86(_64)?)/.match(stem)
     return m.captures.first unless m.nil?

Library/Homebrew/test/test_bottle_versions.rb

@@ -80,4 +80,9 @@ class BottleVersionParsingTests < Homebrew::TestCase
     assert_version_detected '5-20150215',
       'gcc5-5-20150215.yosemite.bottle.tar.gz'
   end
+
+  def test_openssl_style
+    assert_version_detected '1.0.2a-1',
+      'openssl-1.0.2a-1.yosemite.bottle.1.tar.gz'
+  end
 end