resource specialized to present tense ; preprocessor flag

src/GF/Shell/HelpFile.hs

@@ -74,6 +74,7 @@ txtHelpFile =
   "\n      -optimize     select an optimization to override file-defined flags" ++
   "\n      -conversion   select parsing method (values strict|nondet)" ++
   "\n      -probs        read probabilities from file (format (--# prob) Fun Double)" ++
+  "\n      -preproc      use a preprocessor on each source file" ++
   "\n      -noparse      read nonparsable functions from file (format --# noparse Funs) " ++
   "\n  examples:" ++
   "\n      i English.gf                      -- ordinary import of Concrete" ++

src/GF/Shell/ShellCommands.hs

@@ -170,7 +170,7 @@ optionsOfCommand co = case co of
 	           "cat lang lexer parser number depth rawtrees unlexer optimize path conversion printer"
 
   CImport _ -> both "old v s src gfc retain nocf nocheckcirc cflexer noemit o ex prob"
-                    "abs cnc res path optimize conversion cat probs noparse"
+                    "abs cnc res path optimize conversion cat preproc probs noparse"
   CRemoveLanguage _ -> none
   CEmptyState -> none
   CStripState -> none