Add default line pragma templates for C# and Perl.
diff --git a/lib/Anansi/Tangle.hs b/lib/Anansi/Tangle.hs
index c17c810..39f3a58 100644
--- a/lib/Anansi/Tangle.hs
+++ b/lib/Anansi/Tangle.hs
@@ -103,6 +103,8 @@
 		, ("anansi.line-pragma-c", fmtC)
 		, ("anansi.line-pragma-cxx", fmtC)
 		, ("anansi.line-pragma-cpp", fmtC)
+		, ("anansi.line-pragma-cs", fmtC)
+		, ("anansi.line-pragma-pl", fmtC)
 		]
 	opts = fmap compileTemplate (Data.Map.union (documentOptions doc) defaultOptions)