Also add CLI options

doc/lein.1

@@ -6,7 +6,13 @@ lein \- Automate Clojure projects
 .SH SYNOPSIS
 
 .B lein
-[\fITASK\fR [\fIARGS\fR]]
+[\fB\-o\fR] [\fB\-U\fR] [\fITASK\fR [\fIARGS\fR]]
+.br
+.B lein
+[\fB\-h\fR|\fB\-\-help\fR]
+.br
+.B lein
+[\fB\-v\fR|\fB\-\-version\fR]
 
 .SH DESCRIPTION
 
@@ -133,6 +139,23 @@ Print version for Leiningen and the current JVM.
 Apply the given task with the profile(s) specified.
 .RE
 
+.SH OPTIONS
+
+.TP
+.BI \-o
+Run a task offline.
+
+.TP
+.BI \-U
+Run a task after forcing update of snapshots.
+
+.TP
+.BR \-h ", " \-\-help
+Print this help or help for a specific task.
+
+.TP
+.BR \-v ", " \-\-version
+Print Leiningen's version.
 
 .SH CONFIGURATION