dpkg-buildpackage(1): Do not mark square brackets in italic

man/dpkg-buildpackage.1

@@ -217,7 +217,7 @@ regardless of \fB\-us\fP or \fB\-uc\fP or other internal heuristics.
 .TP
 .BR \-i [\fIregexp\fP]
 .TQ
-.BI \-I [\fIpattern\fP]
+.BR \-I [\fIpattern\fP]
 .TQ
 .BR \-s [ nsAkurKUR ]
 .TQ