.TP\r
\fB\-f\fR | \fB\-\-insert\-before\fR \fIpattern\fR\r
Insert before the first line that matches given pattern.\r
-.TP\r
-\fB\-R\fR | \fB\-\-regexp\-match\fR | \fB\-\-regexp\fR\r
-Use regexp mode for line matching.\r
+.PP\r
+Line-matching patterns are PCREs (Perl-compatible regular expressions).\r
.SS Manipulating block marks\r
.TP\r
\fB\-c\fR | \fB\-\-comment\fR \fIstring\fR\r
.RS
.Sp
.Vb 4\r
-\& cp-update --regexp --insert-before '</Controls>' \\\r
+\& cp-update --insert-before '</Controls>' \\\r
\& --comment '<!--' --comment-end ' -->' \\\r
\& gentoo-cn /etc/gentoorc < gentoo-cn.ins
.Ve\r
.RS
.Sp
.Vb 4\r
-\& cp-update -r --regexp --insert-before '</Controls>' \\\r
-\& --comment '<!--' --comment-end ' -->' \\\r
-\& gentoo-cn /etc/gentoorc
+\& cp-update -r --insert-before '</Controls>' \\\r
+\& --comment '<!--' --comment-end ' -->' \\\r
+\& gentoo-cn /etc/gentoorc
.Ve\r
.RE\r
.\"