attr.c: update a stale comment on "struct match_attr"

diff --git a/Documentation/gitattributes.txt b/Documentation/gitattributes.txt
index 3f4d1edb1f4f034fbe47356993deacbcadb1ccca..e0b66c1220a7d22ef5b8eb960a4e2e389a71f884 100644 (file)
--- a/Documentation/gitattributes.txt
+++ b/Documentation/gitattributes.txt
@@ -435,7 +435,9 @@ to filter relative to the repository root. Right after the flush packet
 Git sends the content split in zero or more pkt-line packets and a
 flush packet to terminate content. Please note, that the filter
 must not send any response before it received the content and the
-final flush packet.
+final flush packet. Also note that the "value" of a "key=value" pair
+can contain the "=" character whereas the key would never contain
+that character.
 ------------------------
 packet:          git> command=smudge
 packet:          git> pathname=path/testfile.dat
@@ -516,7 +518,9 @@ the command pipe on exit. The filter is expected to detect EOF
 and exit gracefully on its own. Git will wait until the filter
 process has stopped.
 
-If you develop your own long running filter
+A long running filter demo implementation can be found in
+`contrib/long-running-filter/example.pl` located in the Git
+core repository. If you develop your own long running filter
 process then the `GIT_TRACE_PACKET` environment variables can be
 very helpful for debugging (see linkgit:git[1]).