[PATCH v2 5/5] MyFirstObjectWalk: add stderr to pipe processing

[Dirk Gouders <dirk@gouders.net>]

In the last chapter of this document, pipes are used in commands to
filter out the first/last trace messages.  But according to git(1),
trace messages are sent to stderr if GIT_TRACE is set to '1', so those
commands do not produce the described results.

Fix this by redirecting stderr to stdout prior to the pipe operator
to additionally connect stderr to stdin of the latter command.

Signed-off-by: Dirk Gouders <dirk@gouders.net>
---
 Documentation/MyFirstObjectWalk.txt | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Documentation/MyFirstObjectWalk.txt b/Documentation/MyFirstObjectWalk.txt
index 981dbf917b..2e6ae4d7fc 100644
--- a/Documentation/MyFirstObjectWalk.txt
+++ b/Documentation/MyFirstObjectWalk.txt
@@ -847,7 +847,7 @@ those lines without having to recompile.
 With only that change, run again (but save yourself some scrollback):
 
 ----
-$ GIT_TRACE=1 ./bin-wrappers/git walken | head -n 10
+$ GIT_TRACE=1 ./bin-wrappers/git walken 2>&1 | head -n 10
 ----
 
 Take a look at the top commit with `git show` and the object ID you printed; it
@@ -875,7 +875,7 @@ of the first handful:
 
 ----
 $ make
-$ GIT_TRACE=1 ./bin-wrappers git walken | tail -n 10
+$ GIT_TRACE=1 ./bin-wrappers git walken 2>&1 | tail -n 10
 ----
 
 The last commit object given should have the same OID as the one we saw at the
-- 
2.43.0