debug/readlink{, at}_chk.c: Harmonize declaration and definition
The declaration and definition of these routines aren't consistent.
Make the definition of __readlink_chk and __readlinkat_chk match the
declaration of the routines they fortify. While there are no problems
today this avoids any future potential problems related to the mismatch.
git://sourceware.org / glibc.git / commit