[PATCH 13/16] Manual pages: capsh.1: Describe the argument of --secbits in more detail

[Michael Kerrisk (man-pages)]

The page currently gives the reader no clue about the format of the
argument.

Signed-off-by: Michael Kerrisk (man-pages) <mtk.manpages at gmail.com>
---
 doc/capsh.1 | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/doc/capsh.1 b/doc/capsh.1
index fd6a5ba..0b987f0 100644
--- a/doc/capsh.1
+++ b/doc/capsh.1
@@ -164,6 +164,9 @@ the
 header file. The program will list these bits via the
 .B \-\-print
 command.
+The argument is expressed as a numeric bitmask,
+in any of the formats permitted by
+.BR strtoul (3).
 .TP
 .BI \-\-chroot= path
 Execute the
-- 
2.26.2