@@ -127,7 +127,7 @@ usagemsg = usagemsghdr ++ "\n" ++
127127 "\t --target=TRIPLE Select target triple (for llvm codegen)\n" ++
128128 "\t -S --codegenonly Do no further compilation of code generator output\n" ++
129129 "\t -c --compileonly Compile to object files rather than an executable\n" ++
130− "\t -X --extension ITEM Undocumented\n" ++
130+ "\t -X --extension EXT Turn on langage extension (TypeProviders or ErrorReflection)\n" ++
131131 "\t --dumpdefuns Undocumented\n" ++
132132 "\t --dumpcases Undocumented\n" ++
133133 "\t --log LEVEL --loglevel Debugging log level\n" ++