fixes
diff --git a/asn1c/unber.1 b/asn1c/unber.1
index 9055da8..eec3d38 100644
--- a/asn1c/unber.1
+++ b/asn1c/unber.1
@@ -14,10 +14,10 @@
.SH SYNOPSIS
unber [\fB-1\fR] [\fB-i\fRindent] [\fB-m\fR] [\fB-p\fR] [\fB\-s\fR\fIskip\fR] [\fB\-t\fR\fIhex-string\fR] [\fB-\fR] [\fIinfile\fR...]
.SH DESCRIPTION
-unber takes the BER-encoded files and dumps their internal structure as human readable text.
-A single dash represents the standard input.
+unber presents the internal structure of BER-encoded files as human readable text.
+A single dash denotes the standard input.
.sp
-(The DER and CER formats are both subsets of the BER, and are also supported.)
+(Both DER and CER formats are the subsets of the BER, and are also supported.)
.SH OPTIONS
.TP
\fB\-1\fR