[PATCH v1] fsmonitor: update GIT_TEST_FSMONITOR support

[Ben Peart <benpeart@microsoft.com>]

Rename GIT_FSMONITOR_TEST to GIT_TEST_FSMONITOR for consistency with the
other GIT_TEST_ special setups and properly document its use.

Signed-off-by: Ben Peart <Ben.Peart@microsoft.com>
---

Notes:
    Base Ref: v2.19.0
    Web-Diff: https://github.com/benpeart/git/commit/311484a684
    Checkout: git fetch https://github.com/benpeart/git git-test-fsmonitor-v1 && git checkout 311484a684

 config.c                    | 2 +-
 t/README                    | 4 ++++
 t/t1700-split-index.sh      | 2 +-
 t/t7519-status-fsmonitor.sh | 2 +-
 4 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/config.c b/config.c
index 3461993f0a..3555c63f28 100644
--- a/config.c
+++ b/config.c
@@ -2278,7 +2278,7 @@ int git_config_get_max_percent_split_change(void)
 int git_config_get_fsmonitor(void)
 {
 	if (git_config_get_pathname("core.fsmonitor", &core_fsmonitor))
-		core_fsmonitor = getenv("GIT_FSMONITOR_TEST");
+		core_fsmonitor = getenv("GIT_TEST_FSMONITOR");
 
 	if (core_fsmonitor && !*core_fsmonitor)
 		core_fsmonitor = NULL;
diff --git a/t/README b/t/README
index 9028b47d92..545438c820 100644
--- a/t/README
+++ b/t/README
@@ -319,6 +319,10 @@ GIT_TEST_OE_DELTA_SIZE=<n> exercises the uncomon pack-objects code
 path where deltas larger than this limit require extra memory
 allocation for bookkeeping.
 
+GIT_TEST_FSMONITOR=$PWD/t7519/fsmonitor-all exercises the fsmonitor
+code path for utilizing a file system monitor to speed up detecting
+new or changed files.
+
 Naming Tests
 ------------
 
diff --git a/t/t1700-split-index.sh b/t/t1700-split-index.sh
index b3b4d83eaf..f6a856f24c 100755
--- a/t/t1700-split-index.sh
+++ b/t/t1700-split-index.sh
@@ -6,7 +6,7 @@ test_description='split index mode tests'
 
 # We need total control of index splitting here
 sane_unset GIT_TEST_SPLIT_INDEX
-sane_unset GIT_FSMONITOR_TEST
+sane_unset GIT_TEST_FSMONITOR
 
 test_expect_success 'enable split index' '
 	git config splitIndex.maxPercentChange 100 &&
diff --git a/t/t7519-status-fsmonitor.sh b/t/t7519-status-fsmonitor.sh
index 756beb0d8e..d77012ea6d 100755
--- a/t/t7519-status-fsmonitor.sh
+++ b/t/t7519-status-fsmonitor.sh
@@ -8,7 +8,7 @@ test_description='git status with file system watcher'
 # To run the entire git test suite using fsmonitor:
 #
 # copy t/t7519/fsmonitor-all to a location in your path and then set
-# GIT_FSMONITOR_TEST=fsmonitor-all and run your tests.
+# GIT_TEST_FSMONITOR=fsmonitor-all and run your tests.
 #
 
 # Note, after "git reset --hard HEAD" no extensions exist other than 'TREE'

base-commit: 1d4361b0f344188ab5eec6dcea01f61a3a3a1670
-- 
2.18.0.windows.1