Upgrade curl to curl-7_78_0

Test: make
Change-Id: Icd602cfe251ab2fcd31320b08894b303d1a824d8
diff --git a/docs/libcurl/curl_multi_strerror.3 b/docs/libcurl/curl_multi_strerror.3
index b5e5f73..ce7b38b 100644
--- a/docs/libcurl/curl_multi_strerror.3
+++ b/docs/libcurl/curl_multi_strerror.3
@@ -9,7 +9,7 @@
 .\" *
 .\" * This software is licensed as described in the file COPYING, which
 .\" * you should have received as part of this distribution. The terms
-.\" * are also available at https://curl.haxx.se/docs/copyright.html.
+.\" * are also available at https://curl.se/docs/copyright.html.
 .\" *
 .\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell
 .\" * copies of the Software, and permit persons to whom the Software is
@@ -19,7 +19,7 @@
 .\" * KIND, either express or implied.
 .\" *
 .\" **************************************************************************
-.TH curl_multi_strerror 3 "June 25, 2020" "libcurl 7.73.0" "libcurl Manual"
+.TH curl_multi_strerror 3 "November 04, 2020" "libcurl 7.78.0" "libcurl Manual"
 
 .SH NAME
 curl_multi_strerror - return string describing error code