[Fix] fix node download link for armv8l

Fixes #3035

Author: dewren99

nvm.sh

@@ -1913,7 +1913,7 @@ nvm_get_arch() {
   case "${HOST_ARCH}" in
     x86_64 | amd64) NVM_ARCH="x64" ;;
     i*86) NVM_ARCH="x86" ;;
-    aarch64) NVM_ARCH="arm64" ;;
+    aarch64 | armv8l) NVM_ARCH="arm64" ;;
     *) NVM_ARCH="${HOST_ARCH}" ;;
   esac
 

test/fast/Unit tests/nvm_get_arch

@@ -80,5 +80,6 @@ run_test x86 osx x86
 run_test amd64 osx x64
 
 run_test arm64 smartos x64
+run_test armv8l smartos x64
 
 cleanup

test/mocks/uname_linux_armv8l

@@ -0,0 +1,5 @@
+if [ "_$1" = "_-m" ]; then
+  echo "armv8l"
+else
+  echo "Linux 3.18.14-14721103 #1 SMP PREEMPT Thu Mar 5 20:35:37 KST 2020 armv8l armv8l armv8l GNU/Linux"
+fi