git-sh-setup.sh: add variable to use the stuck-long mode

diff --git a/Documentation/git-check-attr.txt b/Documentation/git-check-attr.txt
index 760aca9fa9dfe0d80ba28f0c5e59f246724c2fc6..00e2aa2df259d449602f59cbec33599346ebd8a0 100644 (file)
--- a/Documentation/git-check-attr.txt
+++ b/Documentation/git-check-attr.txt
@@ -61,6 +61,11 @@ being queried and <info> can be either:
 'set';;                when the attribute is defined as true.
 <value>;;      when a value has been assigned to the attribute.
 
+Buffering happens as documented under the `GIT_FLUSH` option in
+linkgit:git[1].  The caller is responsible for avoiding deadlocks
+caused by overfilling an input buffer or reading from an empty output
+buffer.
+
 EXAMPLES
 --------