Fix setting of process title causing rspec breakage

Fixes jonleighton/spring-commands-rspec#7

Author: jonleighton

CHANGELOG.md

@@ -1,3 +1,9 @@
+## Next release
+
+* Fix `$0` so that it is no longer prefixed with "spring ", as doing
+  this cause issues with rspec when running just `rspec` with no
+  arguments.
+
 ## 1.1.0
 
 * A `bin/spring` binstub is now generated. This allows us to load spring

lib/spring/command_wrapper.rb

@@ -42,7 +42,7 @@ def call
     end
 
     def process_title
-      ["spring", name, *ARGV].join(" ")
+      [name, *ARGV].join(" ")
     end
 
     def gem_name