From a5673e7fb6c9cb4960e447d0b915f773ff8c688f Mon Sep 17 00:00:00 2001
From: Brandon Keepers <brandon@opensoul.org>
Date: Tue, 2 Dec 2014 21:03:39 -0600
Subject: [PATCH] Fix detection for invalid shebang

---
 lib/linguist/shebang.rb | 2 +-
 test/test_shebang.rb    | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/linguist/shebang.rb b/lib/linguist/shebang.rb
index 4ed11412..3405bb62 100644
--- a/lib/linguist/shebang.rb
+++ b/lib/linguist/shebang.rb
@@ -19,7 +19,7 @@ module Linguist
     # Returns a String or nil
     def self.interpreter(data)
       lines = data.lines
-      return unless match = /^#! ?(.*)$/.match(lines.first)
+      return unless match = /^#! ?(.+)$/.match(lines.first)
 
       tokens = match[1].split(' ')
       script = tokens.first.split('/').last
diff --git a/test/test_shebang.rb b/test/test_shebang.rb
index b359a771..4b6b39a6 100644
--- a/test/test_shebang.rb
+++ b/test/test_shebang.rb
@@ -16,6 +16,7 @@ class TestShebang < Test::Unit::TestCase
     assert_interpreter nil, "\n\n\n\n\n"
     assert_interpreter nil, " #!/usr/sbin/ruby"
     assert_interpreter nil, "\n#!/usr/sbin/ruby"
+    assert_interpreter nil, "#!"
 
     assert_interpreter "ruby", "#!/usr/sbin/ruby\n# bar"
     assert_interpreter "ruby", "#!/usr/bin/ruby\n# foo"