Include bundler in packages to install on Ubuntu

diff --git a/INSTALL.md b/INSTALL.md
index d0640aa12b3a78b318b48073f1c881b07aac19c3..c79e365a53be5fec888b30ed3649ca9211f994b0 100644 (file)
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -27,7 +27,7 @@ of packages required before you can get the various gems installed.
 These can be installed on Ubuntu 16.04 or later with:
 
 ```
-sudo apt-get install ruby2.5 libruby2.5 ruby2.5-dev \
+sudo apt-get install ruby2.5 libruby2.5 ruby2.5-dev bundler \
                      libmagickwand-dev libxml2-dev libxslt1-dev nodejs \
                      apache2 apache2-dev build-essential git-core \
                      postgresql postgresql-contrib libpq-dev postgresql-server-dev-all \