* src/check.c, src/check.h, src/emit.c, src/emit.h, src/emit_cost.c,
* src/emit_files.c, src/emit_functions.c, src/emit_kids.c,
* src/emit_pretty_print.c, src/main.c, src/mem_clean.c,
* src/mem_clean.h, src/named_subtree.c, src/named_subtree.h,
* src/parser.h, src/rule.c, src/rule.h:
Untabify.