help unmasking sys-apps/ed

[praka123]

Hello,
I am upgrading to modular Xorg 7 and already removed Xorg6.8 and now i added packages that needs upgrade in /etc/portage/package.keywords like :

sys-apps/man ~x86 
 sys-apps/portage ~x86 
 sys-apps/ed   ~x86 
 dev-python/pycrypto ~x86 
 app-doc/opengl-manpages ~x86 
 app-doc/xorg-docs ~x86 
 app-doc/xorg-sgml-doctools ~x86 ....

now when i tried localhost / # emerge --pretend xorg-x11

 localhost / # emerge --pretend xorg-x11 
  
 These are the packages that would be merged, in order: 
  
 Calculating dependencies | 
 !!! All ebuilds that could satisfy "sys-apps/ed" have been masked. 
 !!! One of the following masked packages is required to complete your request: 
 - sys-apps/ed-0.2-r6 (masked by: ) 
  
 For more information, see MASKED PACKAGES section in the emerge man page or 
 refer to the Gentoo Handbook. 
 (dependency required by "x11-libs/libXaw-1.0.2" [ebuild])

now i already unmasked by adding in /etc/portage/package.keywords-sys-apps/ed ~x86 .how do i unmask this..help

[praka123]

after an "emerge --sync" i upgraded portage,and able to install ed also.Thank You All