doc: fix documented function name

* data/README.md: Fix the name of a referenced function to match the
name in code.

data/README.md

@@ -79,7 +79,7 @@ skeletons.
 In order to unify the handling of the various aspects of symbols (tag, type
 name, whether terminal, etc.), bison.exe defines one macro per (token,
 field), where field can `has_id`, `id`, etc.: see
-`prepare_symbols_definitions()` in `src/output.c`.
+`prepare_symbol_definitions()` in `src/output.c`.
 
 NUM can be:
 - `empty` to denote the "empty" pseudo-symbol when it exists,

doc/bison.texi

@@ -11913,7 +11913,8 @@ If omitted and the grammar file is @file{foo.y}, the output file will be
 
 @item -M @var{old}=@var{new}
 @itemx --file-prefix-map=@var{old}=@var{new}
-Replace prefix @var{old} with @var{new} when writing file paths in output files
+Replace prefix @var{old} with @var{new} when writing file paths in output
+files.
 @end table
 
 @node Option Cross Key