Use 2 spaces for formatting bash

Also remove extra trailing newlines

plugins/git/backup-import

@@ -6,15 +6,15 @@ IMPORT_DIR="$2"
 TARGET_DIR="$3"
 APPS="$4"
 
-while read APP; do 
-    APP_PATH="$TARGET_DIR/$APP"; 
-    git init --bare $APP_PATH > /dev/null
-    PRERECEIVE_HOOK="$APP_PATH/hooks/pre-receive"
-    cat > $PRERECEIVE_HOOK <<EOF
+while read APP; do
+  APP_PATH="$TARGET_DIR/$APP";
+  git init --bare $APP_PATH > /dev/null
+  PRERECEIVE_HOOK="$APP_PATH/hooks/pre-receive"
+  cat > $PRERECEIVE_HOOK <<EOF
 #!/usr/bin/env bash
 set -e; set -o pipefail;
 
 cat | DOKKU_ROOT="$DOKKU_ROOT" dokku git-hook $APP
 EOF
-    chmod +x $PRERECEIVE_HOOK
+  chmod +x $PRERECEIVE_HOOK
 done < $APPS > /dev/null