Merge pull request #22 from kjgorman/patch-1

an -> a

Author: siywilliams

FluentCommandLineParser.Tests/FluentCommandLineParserMSpecTests.cs

@@ -60,7 +60,7 @@ class when_initialised : FluentCommandLineParserTestContext
 				It should_not_have_any_options_setup = () => 
 					sut.Options.ShouldBeEmpty();
 
-				It should_have_an_parser_engine = () => 
+				It should_have_a_parser_engine = () => 
 					sut.ParserEngine.ShouldNotBeNull();
 			}
 		}
@@ -92,4 +92,4 @@ class when_disabled : IsCaseSensitiveTestContext
 			}
 		}
 	}
-}
+}