Merge pull request #35 from vladlosev/fix-linux-arm64-install

fix: Linux/ARM64 install.

Author: highb

lib/utils.bash

@@ -10,7 +10,7 @@ OS="${OS:-unknown}"
 ARCH="${ARCH:-unknown}"
 
 fail() {
-  echo -e "asdf-$TOOL_NAME: $*"
+  echo -e "asdf-$TOOL_NAME: $*" >/dev/stderr
   exit 1
 }
 
@@ -78,6 +78,8 @@ detect_arch() {
       echo "$ARCH"
     elif [ "${ARCH}" == "arm64" ]; then
       echo "$ARCH"
+    elif [ "${ARCH}" == "aarch64" ]; then
+      echo "arm64"
     elif [ "${ARCH}" == "i386" ]; then
       echo "$ARCH"
     elif [ "${ARCH}" == "armv7" ]; then