Since commit 74d565ff1 (vi: make context marks more like vi) the
list of commands that modify the text is no longer required when
FEATURE_VI_YANKMARK is enabled, only FEATURE_VI_DOT_CMD.
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>