package matching a certain pattern. Examples:
yui# cd /usr/pkgsrc/packages/i386ELF/All/
yui# ls unzip*
unzip-5.40.tgz unzip-5.41.tgz
yui# pkg_admin lsall 'unzip*'
unzip-5.40.tgz
unzip-5.41.tgz
yui# pkg_admin lsall 'unzip>=5.40'
unzip-5.40.tgz
unzip-5.41.tgz
yui# pkg_admin lsall 'unzip>=5.41'
unzip-5.41.tgz
yui# pkg_admin lsbest 'unzip>=5.40'
unzip-5.41.tgz
yui# pkg_admin lsall /usr/pkgsrc/packages/i386ELF/All/'{mit,unproven}-pthread*'
/usr/pkgsrc/packages/i386ELF/All/mit-pthreads-1.60b6.tgz
This adds a shell/user-interface to pkg-patterns, which are a superset
of sh/csh patterns and can't be expanded by any shell.
list, using chopss' list functions (moved to lib/lpkg.c and
lib/lib.h).
Properly handle wildcards in arguments to "pkg_info", "pkg_delete" and
"pkg_admin check".
Some other minor cleanups.