Fix a -Wcast-qual warning in libkern's strtol(), by using __DECONST. No
functional change.
MFC r277903:
Similar to r277901, fix more -Wcast-qual warnings in libkern's strtoq(),
strtoul() and strtouq(), by using __DECONST. No functional change.
parameter a char ** instead of a const char **. This make these
kernel routines consistent with the corresponding libc userland
routines.
Which is actually 'correct' is debatable, but consistency and
following the spec was deemed more important in this case.
Reviewed by (in concept): phk, bde