Remove xfree(), like already done for RCS. From Michael W Bombardieri,
ok mmcc

Replace <sys/param.h> with <limits.h> and other less dirty headers where
possible. Annotate <sys/param.h> lines with their current reasons. Switch
to PATH_MAX, NGROUPS_MAX, HOST_NAME_MAX+1, LOGIN_NAME_MAX, etc. Change
MIN() and MAX() to local definitions of MINIMUM() and MAXIMUM() where
sensible to avoid pulling in the pollution. These are the files confirmed
through binary verification.
ok guenther, millert, doug (helped with the verification protocol)

allow our parsing functions to stop parsing a config file at
any given time.

will come in handy for CVSROOT/loginfo and CVSROOT/commitinfo

more CVSROOT/modules stuff:

- support for -i flag:
Run "prog" on "cvs commit" from top-level of module.
- fix some memory leaks in modules.c
- pass the line number from cvs_read_config() towards the callbacks
so its easier to print out where it's going wrong, if it ever does.

OK tobias@

introduce cvs_read_config() which will be used as a general
handler to open and read configuration files in CVSROOT/

change cvs_parse_configfile() to use cvs_read_config() instead;

ok tobias@

An umask is octet not decimal. This means we cannot use strtonum() to
parse it due to base 10. Instead strtol() with base 8 must be used.

Avoid memory leak if tag is defined multiple times in CVSROOT/config.

OK ray@, xsa@

Do not fatal() if the CVSROOT/config file does not exist.
Matches GNU's behaviour. OK ray@.

general includes cleanup sweep. ok joris@ niallo@

cvs_path_cat() removal since we can now easily handle that
functionality w/ xsnprintf(); Initial diff started by thib@.
OK thib@ joris@.

do not use strlcpuy on a buffer filled by fgetln, since fgetln does
not NUL-terminate. ok xsa@

add config file path in debug message.

snprintf() -> cvs_path_cat()

in preparation for the new remote code, proto.h becomes obsolete.

teach opencvs about the dlimit keyword in CVSROOT/config.
put some trace messages in place while im here.

handle comments and leading spaces correctly
in CVSROOT/config

basic support for CVSROOT/config - only supporting the 'tag' and
'umask' keyword right now.