[gnome-software] Update RELEASE to not use underscores for tags

[Kalev Lember <klember src gnome org>]

commit 2e4ce615fd17082d550a2df41ebc8d77d25bdd94
Author: Kalev Lember <klember redhat com>
Date:   Sat Dec 16 18:13:22 2017 +0100

    Update RELEASE to not use underscores for tags
    
    As discussed on IRC and
    https://mail.gnome.org/archives/gnome-software-list/2017-December/msg00003.html

 RELEASE |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/RELEASE b/RELEASE
index 27c534a..4424bc6 100644
--- a/RELEASE
+++ b/RELEASE
@@ -2,14 +2,14 @@ GNOME Software Release Notes
 
 Write release entries:
 
-git log --format="%s" --cherry-pick --right-only GNOME_SOFTWARE_3_27_3... | grep -i -v trivial | grep -v 
Merge | sort | uniq
+git log --format="%s" --cherry-pick --right-only 3.27.3... | grep -i -v trivial | grep -v Merge | sort | uniq
 Add any user visible changes into data/appdata/org.gnome.Software.appdata.xml.in
 
 Generate NEWS file:
 appstream-util appdata-to-news data/appdata/org.gnome.Software.appdata.xml.in > NEWS
 
 git commit -a -m "Release version 3.27.4"
-git tag -s GNOME_SOFTWARE_3_27_4 -m "==== Version 3.27.4 ===="
+git tag -s 3.27.4 -m "==== Version 3.27.4 ===="
 <enter password>
 
 ninja-build dist