handle adding and remove a shell path in /etc/shell

	Commit message (Expand)	Author	Age	Files	Lines
*	- remove MD5	ohauer	2011-07-03	1	-1/+0
*	- Fix build with custom PREFIX	pgollucci	2009-06-23	1	-0/+2
*	- Add SHA256	pav	2005-11-25	1	-0/+1
bapt	2014-06-12	1	-3/+1
*	- Convert to new options helper	sunpoet	2014-03-01	2	-7/+3
*	- Fix build on i386	sunpoet	2014-02-28	2	-0/+40
*	Part 2 at removing now useless FETCH_ARGS redifition	bapt	2014-01-03	1	-1/+0
*	- Fix /etc/shells manipulation	sunpoet	2013-12-31	1	-2/+2
*	Support stage	bapt	2013-12-27	2	-14/+5
*	Add NO_STAGE all over the place in preparation for the staging support (cat: ...	bapt	2013-09-21	1	-0/+1
*	- Remove deprecated PTHREAD_*	sunpoet	2013-09-08	1	-1/+1
*	- Convert to new options framework	sunpoet	2013-08-25	1	-2/+2
*	- Update INIT to 2013-05-24	sunpoet	2013-08-10	2	-5/+6
*	- Update to 2012-08-01	sunpoet	2012-10-07	2	-8/+8
*	Remove pointless header lines from ports I created once upon a time.	naddy	2012-09-16	1	-4/+0
*	- Fix build on system with source later than r227487 [1]	sunpoet	2012-06-19	1	-0/+10
*	- Remove RESTRICTED	sunpoet	2012-04-18	1	-2/+0
*	- Update to 2012-02-29	sunpoet	2012-03-29	3	-19/+10
*	- Update INIT to 2012-01-01 which also fixes 'make fetch' error	sunpoet	2012-01-08	2	-4/+5
*	- Bugfix: ksh segfaults on suspend	sunpoet	2011-10-05	2	-1/+11
*	- Remove MANUAL_PACKAGE_BUILD: tinderbox build was fixed in Makefile r1.62	sunpoet	2011-08-20	1	-1/+0
*	- Fix build when WITH_STATIC is set	sunpoet	2011-06-25	1	-1/+1
*	- Remove INSTALLROOT completely	sunpoet	2011-06-19	2	-33/+31
*	- Fix INSTALLROOT issue which breaks 'make package' under some circumstances	sunpoet	2011-02-15	1	-1/+4
*	- Update to 2011-02-08	sunpoet	2011-02-11	2	-15/+10
*	Unfortunately, reset maintainer.	linimon	2011-02-11	1	-1/+1
*	- Update to 2010-03-09	sylvio	2010-04-18	2	-7/+7
*	- Update to 2010-03-01	wxs	2010-03-06	2	-7/+7
*	- Update to 2009-05-05	garga	2009-05-10	2	-7/+7
*	- Update to 2008-11-04	wxs	2008-11-06	2	-8/+7
*	Add CONFLICTS for new port: shells/ksh93-devel.	wxs	2008-11-05	1	-0/+2
*	- Update to 2008-07-25	miwi	2008-08-19	2	-7/+7
*	- Remove duplicates from MAKE_ENV after inclusion of CC and CXX in default MA...	pav	2008-07-25	1	-1/+1
*	- Update to 2008-02-02	miwi	2008-02-16	2	-7/+7
*	- Update to 2007-11-05 release	miwi	2008-01-19