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-rw-r--r--libs/libcurl/src/pingpong.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/libs/libcurl/src/pingpong.c b/libs/libcurl/src/pingpong.c
index e08c1d8663..cd55173261 100644
--- a/libs/libcurl/src/pingpong.c
+++ b/libs/libcurl/src/pingpong.c
@@ -18,6 +18,8 @@
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
+ * SPDX-License-Identifier: curl
+ *
* 'pingpong' is for generic back-and-forth support functions used by FTP,
* IMAP, POP3, SMTP and whatever more that likes them.
*