update the ec_semver_parser

src/ec_semver_parser.erl

@@ -1,4 +1,3 @@
-%%% vi:ts=4 sw=4 et
 -module(ec_semver_parser).
 -export([parse/1,file/1]).
 -compile({nowarn_unused_function,[p/4, p/5, p_eof/0, p_optional/1, p_not/1, p_assert/1, p_seq/1, p_and/1, p_choose/1, p_zero_or_more/1, p_one_or_more/1, p_label/2, p_string/1, p_anything/0, p_charclass/1, p_regexp/1, p_attempt/4, line/1, column/1]}).
@@ -6,7 +5,7 @@
 
 -compile(export_all).
 -spec file(file:name()) -> any().
-file(Filename) -> {ok, Bin} = file:read_file(Filename), parse(Bin).
+file(Filename) -> case file:read_file(Filename) of {ok,Bin} -> parse(Bin); Err -> Err end.
 
 -spec parse(binary() | list()) -> any().
 parse(List) when is_list(List) -> parse(list_to_binary(List));