Adding upstream version 1.9.1.upstream/1.9.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 20 insertions, 0 deletions

diff --git a/iredis/data/commands/ping.md b/iredis/data/commands/ping.md
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+Returns `PONG` if no argument is provided, otherwise return a copy of the
+argument as a bulk. This command is often used to test if a connection is still
+alive, or to measure latency.
+
+If the client is subscribed to a channel or a pattern, it will instead return a
+multi-bulk with a "pong" in the first position and an empty bulk in the second
+position, unless an argument is provided in which case it returns a copy of the
+argument.
+
+@return
+
+@simple-string-reply
+
+@examples
+
+```cli
+PING
+
+PING "hello world"
+```