net/sngrep: allow base ncurses [1]

While here:

• Update default options [2]
• Remove REINPLACE_CMD which was no longer necessary

PR: 244141 [1]
PR: 244151 [2]
Approved by: Talal Al Dik <tad@vif.com> (maintainer) [1]
Submitted by: Talal Al Dik <tad@vif.com> (maintainer) [2]