[PATCH v5 1/4] docs: mention trace2 target-dir mode in git-config

[Josh Steadmon <steadmon@google.com>]

Move the description of trace2's target-directory behavior into the
shared trace2-target-values file so that it is included in both the
git-config and api-trace2 docs. Leave the SID discussion only in
api-trace2 since it's a technical detail.

Change-Id: I3d052c5904684e981f295d64aa2c5d62cfaa4500
Signed-off-by: Josh Steadmon <steadmon@google.com>
---
 Documentation/technical/api-trace2.txt | 7 +++----
 Documentation/trace2-target-values.txt | 4 +++-
 2 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/Documentation/technical/api-trace2.txt b/Documentation/technical/api-trace2.txt
index 71eb081fed..80ffceada0 100644
--- a/Documentation/technical/api-trace2.txt
+++ b/Documentation/technical/api-trace2.txt
@@ -142,10 +142,9 @@ system or global config value to one of the following:
 
 include::../trace2-target-values.txt[]
 
-If the target already exists and is a directory, the traces will be
-written to files (one per process) underneath the given directory. They
-will be named according to the last component of the SID (optionally
-followed by a counter to avoid filename collisions).
+When trace files are written to a target directory, they will be named according
+to the last component of the SID (optionally followed by a counter to avoid
+filename collisions).
 
 == Trace2 API
 
diff --git a/Documentation/trace2-target-values.txt b/Documentation/trace2-target-values.txt
index 27d3c64e66..3985b6d3c2 100644
--- a/Documentation/trace2-target-values.txt
+++ b/Documentation/trace2-target-values.txt
@@ -2,7 +2,9 @@
 * `0` or `false` - Disables the target.
 * `1` or `true` - Writes to `STDERR`.
 * `[2-9]` - Writes to the already opened file descriptor.
-* `<absolute-pathname>` - Writes to the file in append mode.
+* `<absolute-pathname>` - Writes to the file in append mode. If the target
+already exists and is a directory, the traces will be written to files (one
+per process) underneath the given directory.
 * `af_unix:[<socket_type>:]<absolute-pathname>` - Write to a
 Unix DomainSocket (on platforms that support them).  Socket
 type can be either `stream` or `dgram`; if omitted Git will
-- 
2.23.0.581.g78d2f28ef7-goog