[geary: 1/2] INSTALL: add missing itstool dependency for Fedora

[Michael Gratton <mjog src gnome org>]

commit 8d24b1499e7783da6ea01dae347476de3cfea5ea
Author: Björn Daase <bjoern daase net>
Date:   Wed Apr 22 23:29:29 2020 +0200

    INSTALL: add missing itstool dependency for Fedora
    
    Otherwise, the post install script on Fedora crashes with:
    `FileNotFoundError: [Errno 2] No such file or directory: 'itstool'`.
    
    It is in the Ubuntu/Debian dependencies so simply add it for Fedora as well

 INSTALL | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/INSTALL b/INSTALL
index 05dfbb4a..8cb6743a 100644
--- a/INSTALL
+++ b/INSTALL
@@ -42,7 +42,7 @@ Install them by running this command:
     sudo dnf install meson vala desktop-file-utils enchant2-devel \
         folks-devel gcr-devel glib2-devel gmime30-devel \
         gnome-online-accounts-devel gspell-devel gsound-devel \
-        gtk3-devel iso-codes-devel json-glib-devel \
+        gtk3-devel iso-codes-devel itstool json-glib-devel \
         libappstream-glib-devel libgee-devel libhandy-devel \
         libpeas-devel libsecret-devel libunwind-devel libxml2-devel \
         libytnef-devel sqlite-devel webkitgtk4-devel