[gnumeric] clarify the -O "sheet=..." option in ssconvert's manual page

[Andreas J. Guelzow <guelzow src gnome org>]

commit e2c893c06091fa5c05a873ef7353503a4254dc9c
Author: Andreas J Guelzow <aguelzow pyrshep ca>
Date:   Thu Jun 13 12:58:30 2013 -0600

    clarify the -O "sheet=..." option in ssconvert's manual page
    
    2013-06-13  Andreas J. Guelzow <aguelzow pyrshep ca>
    
        * gnumeric.1: clarify the -O "sheet=..." option

 doc/C/ChangeLog   |    4 ++++
 doc/C/ssconvert.1 |    7 ++++++-
 2 files changed, 10 insertions(+), 1 deletions(-)
---
diff --git a/doc/C/ChangeLog b/doc/C/ChangeLog
index efbe6aa..d5373d2 100644
--- a/doc/C/ChangeLog
+++ b/doc/C/ChangeLog
@@ -1,3 +1,7 @@
+2013-06-13  Andreas J. Guelzow <aguelzow pyrshep ca>
+
+       * gnumeric.1: clarify the -O "sheet=..." option
+
 2013-06-11  Andreas J. Guelzow <aguelzow pyrshep ca>
        for Dmitry Smirnov <onlyjob member fsf org>
 
diff --git a/doc/C/ssconvert.1 b/doc/C/ssconvert.1
index e059902..89460aa 100644
--- a/doc/C/ssconvert.1
+++ b/doc/C/ssconvert.1
@@ -234,7 +234,10 @@ Mixed Integer Linear Programming (MILP) solver
 
 .TP
 .B sheet
-Name of the workbook sheet to operate on. This is ignored if the \fBobject\fR option is given.
+Name of the workbook sheet to operate on.
+You can specify several sheets by repeating this option. If this option is not given the active
+sheet (i. e. the sheet that was active when the file was saved) is used.
+This is ignored if the \fBobject\fR option is given.
 
 .TP
 .B object
@@ -257,6 +260,8 @@ size of the graph.
 .TP
 .B sheet
 Name of the workbook sheet to operate on.
+You can specify several sheets by repeating this option. If this option is not given the active
+sheet (i. e. the sheet that was active when the file was saved) is used.
 
 .TP
 .B eol