Add parsing of -l option
diff --git a/ltrace.1 b/ltrace.1
index fb64289..16cb03b 100644
--- a/ltrace.1
+++ b/ltrace.1
@@ -7,7 +7,7 @@
.SH SYNOPSIS
.B ltrace
-.I "[-bCfghiLrStttV] [-a column] [-A maxelts] [-D level] [-e expr] [-l filename] [-n nr] [-o filename] [-p pid] ... [-s strsize] [-u username] [-w count] [-x extern] ... [--align=column] [--debug=level] [--demangle] [--help] [--indent=nr] [--library=filename] [--no-signals] [--output=filename] [--version] [--where=NR] [command [arg ...]]"
+.I "[-bCfghiLrStttV] [-a column] [-A maxelts] [-D level] [-e expr] [-l library_pattern] [-n nr] [-o filename] [-p pid] ... [-s strsize] [-u username] [-w count] [-x extern] ... [--align=column] [--debug=level] [--demangle] [--help] [--indent=nr] [--library=library_pattern] [--no-signals] [--output=filename] [--version] [--where=NR] [command [arg ...]]"
.SH DESCRIPTION
.B ltrace
@@ -95,16 +95,16 @@
.I \-i
Print the instruction pointer at the time of the library call.
.TP
-.I \-l, \-\-library filename
-Display only the symbols included in the library
-.I filename.
-Up to 30 library names can be specified with several instances
-of this option.
+.I \-l, \-\-library library_pattern
+Display only the symbols implemented by libraries that match
+.I library_pattern.
+Multiple library patters can be specified with several instances of
+this option. Syntax of library_pattern is described in section
+\fBFILTER EXPRESSIONS\fR.
.TP
.I \-L
-DON'T display library calls (use it with the
-.I \-S
-option).
+When no -e option is given, don't assume the default action of
+\fB@MAIN\fR.
.TP
.I \-n, \-\-indent nr
Indent trace output by