Print error when downloading file error inside install script (#6874)

* Print error when downloading file error inside install script
* Update install.sh.sha256sum

Signed-off-by: yhw <2278069802@qq.com>

install.sh

@@ -414,7 +414,7 @@ get_k3s_selinux_version() {
 # --- download from github url ---
 download() {
     [ $# -eq 2 ] || fatal 'download needs exactly 2 arguments'
-
+    set +e
     case $DOWNLOADER in
         curl)
             curl -o $1 -sfL $2
@@ -429,6 +429,7 @@ download() {
 
     # Abort if download command failed
     [ $? -eq 0 ] || fatal 'Download failed'
+    set -e
 }
 
 # --- download hash from github url ---

install.sh.sha256sum

@@ -1 +1 @@
-151d816884423621b302cc3b429e71a29f8d0720608ffc16a7a6ae20570a50e4  install.sh
+431c6fe653336279073e5b913557aa22d7ef1794b30b4f02002b4482910464d7  install.sh