Fortran: code color GOTO as flow keyword.

src/fortrancode.l

@@ -724,7 +724,7 @@ ATTR_SPEC (IMPLICIT|ALLOCATABLE|DIMENSION{ARGS}|EXTERNAL|{INTENT_SPEC}|INTRINSIC
 ACCESS_SPEC (PROTECTED|PRIVATE|PUBLIC)
 /* Assume that attribute statements are almost the same as attributes. */
 ATTR_STMT {ATTR_SPEC}|DIMENSION
-FLOW      (DO|SELECT|CASE|SELECT{BS}(CASE|TYPE)|WHERE|IF|THEN|ELSE|WHILE|FORALL|ELSEWHERE|ELSEIF|RETURN|CONTINUE|EXIT)
+FLOW      (DO|SELECT|CASE|SELECT{BS}(CASE|TYPE)|WHERE|IF|THEN|ELSE|WHILE|FORALL|ELSEWHERE|ELSEIF|RETURN|CONTINUE|EXIT|GO{BS}TO)
 COMMANDS  (FORMAT|CONTAINS|MODULE{BS_}PROCEDURE|WRITE|READ|ALLOCATE|ALLOCATED|ASSOCIATED|PRESENT|DEALLOCATE|NULLIFY|SIZE|INQUIRE|OPEN|CLOSE|FLUSH|DATA|COMMON)
 IGNORE    (CALL)
 PREFIX    (RECURSIVE{BS_}|IMPURE{BS_}|PURE{BS_}|ELEMENTAL{BS_}){0,3}(RECURSIVE|IMPURE|PURE|ELEMENTAL)?