git-gui: fix spelling error in sshkey.tcl

Spelling error originally reported to Ubuntu as launchpad bug #879427.

Acked-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Dejan Ribič <dejan.ribic@gmail.com>
Signed-off-by: Pat Thoyts <patthoyts@users.sourceforge.net>
1 file changed