[PATCH iproute2 v3] Add a description section to the rdma man page

Add a description section to the rdma man page with basic info about the
command for users unfamiliar with it.

Signed-off-by: Alan Perry <redacted>
Acked-by: Leon Romanovsky <leonro@nvidia.com>
---
Changelog
Removed man page date change. Reworked description change into several lines
instead of one long line.
---
 man/man8/rdma.8 | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/man/man8/rdma.8 b/man/man8/rdma.8
index c9e5d50d..9c016687 100644
--- a/man/man8/rdma.8
+++ b/man/man8/rdma.8

@@ -29,6 +29,12 @@ rdma \- RDMA tool
 \fB\-j\fR[\fIson\fR] }
 \fB\-p\fR[\fIretty\fR] }
 
+.SH DESCRIPTION
+.B rdma
+is a tool for querying and setting the configuration for RDMA, direct
+memory access between the memory of two computers without use of the
+operating system on either computer.
+
 .SH OPTIONS
 
 .TP

-- 
2.30.0