Correct waterfox-g4-bin version format

A post installation message has also been added informing about the new generation of Waterfox.

srcpkgs/waterfox-g4-bin/INSTALL.msg

@@ -0,0 +1,2 @@
+The newest generation of Waterfox is G5.
+You can find it in our repository as waterfox-g5-bin.

srcpkgs/waterfox-g4-bin/template

@@ -1,7 +1,6 @@
 # Template file for 'waterfox-g4-bin'
 pkgname=waterfox-g4-bin
-version=1.5
-_generation=G4
+version=4.1.5
 revision=1
 archs="x86_64"
 repository="cereus-extra"
@@ -12,16 +11,15 @@ short_desc="Fourth generation of customizable privacy-conscious web browser - bi
 maintainer="KF-Art <https://github.com/KF-Art>"
 license="MPL-2.0"
 homepage="https://github.com/WaterfoxCo/Waterfox"
-changelog="https://github.com/WaterfoxCo/Waterfox/releases/tag/${_generation}.${version}"
-distfiles="${homepage}/releases/download/${_generation}.${version}/waterfox-${_generation}.${version}.en-US.linux-x86_64.tar.bz2"
+changelog="https://www.waterfox.net/docs/releases/G${version}"
+distfiles="${homepage}/releases/download/G${version}/waterfox-G${version}.en-US.linux-x86_64.tar.bz2"
 checksum=13f3c584a90c50ad0fe9006d1fe0906edfdaa02ced99f0f027090d226ed0f942
-
-do_extract() {
-	vmkdir opt
-        bsdtar -C ${DESTDIR}/opt/ -xf "${XBPS_SRCDISTDIR}/${pkgname}-${version}/waterfox-${_generation}.${version}.en-US.linux-x86_64.tar.bz2"
-}
+conflicts="waterfox-g5-bin"
 
 do_install() {
+    vmkdir opt
+    bsdtar -xf waterfox-G${version}.en-US.linux-x86_64.tar.bz2 \
+        -C ${DESTDIR}/opt/
     vmkdir usr/bin
     ln -rfs ${DESTDIR}/opt/waterfox/waterfox ${DESTDIR}/usr/bin
 
@@ -59,4 +57,3 @@ END
 }
 END
 }
-