gitignore: negate "No core files" pattern in 'vpp-api/java'

The 'vpp-api/java' includes 'core' subdir which should be tracked.

This patch adds .gitignore for 'vpp-api/java'
to negate pattern that matches 'core' files/dirs,
introduced by https://gerrit.fd.io/r/#/c/9848/.

Change-Id: I4e10ca10a891a2d95d6b45e479ee8d2196749132
Signed-off-by: Marek Gradzki <mgradzki@cisco.com>

diff --git a/src/vpp-api/java/.gitignore b/src/vpp-api/java/.gitignore
new file mode 100644 (file)
index 0000000..62165b4
--- /dev/null
+++ b/src/vpp-api/java/.gitignore
@@ -0,0 +1,2 @@
+# Negate "No core files" pattern from the toplevel .gitignore
+!**/core
\ No newline at end of file