Merge branch 'run-t5601-and-t7406-with-symlinks-on-windows-10'

This topic branch contains a patch that made it into Git for Windows
v2.45.1 but not into Git v2.45.1 (because the latter does not come with
symlink support on Windows).

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>

t/t5601-clone.sh

@@ -7,6 +7,16 @@ export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
 
 . ./test-lib.sh
 
+# This test script contains test cases that need to create symbolic links. To
+# make sure that these test cases are exercised in Git for Windows, where (for
+# historical reasons) `ln -s` creates copies by default, let's specifically ask
+# for `ln -s` to create symbolic links whenever possible.
+if test_have_prereq MINGW
+then
+	MSYS=${MSYS+$MSYS }winsymlinks:nativestrict
+	export MSYS
+fi
+
 X=
 test_have_prereq !MINGW || X=.exe
 

t/t7406-submodule-update.sh

@@ -14,6 +14,15 @@ export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
 
 . ./test-lib.sh
 
+# This test script contains test cases that need to create symbolic links. To
+# make sure that these test cases are exercised in Git for Windows, where (for
+# historical reasons) `ln -s` creates copies by default, let's specifically ask
+# for `ln -s` to create symbolic links whenever possible.
+if test_have_prereq MINGW
+then
+	MSYS=${MSYS+$MSYS }winsymlinks:nativestrict
+	export MSYS
+fi
 
 compare_head()
 {