lorax: Pass the kernel version to dracut as --kver

dracut dies with a usage message here if the version is passed after the
image name.

This is probably not needed as it turns out but I can't test that without a
full clean build which I don't have time for right now.

lorax/0001_pass_kernel_version_as_an_arg.patch

@@ -0,0 +1,12 @@
+diff -ur lorax-22.1/src/pylorax/treebuilder.py lorax-22.1-patch/src/pylorax/treebuilder.py
+--- lorax-22.1/src/pylorax/treebuilder.py	2014-12-13 11:20:56.000000000 +1300
++++ lorax-22.1-patch/src/pylorax/treebuilder.py	2016-03-17 15:14:40.539871906 +1300
+@@ -227,7 +227,7 @@
+             if backup:
+                 initrd = joinpaths(self.vars.inroot, outfile)
+                 os.rename(initrd, initrd + backup)
+-            cmd = dracut + [outfile, kernel.version]
++            cmd = dracut + ["--kver", kernel.version, outfile]
+             runcmd(cmd, root=self.vars.inroot)
+ 
+             # ppc64 cannot boot images > 32MiB, check size and warn

lorax/lorax.spec

@@ -16,7 +16,7 @@ Group:          Applications/System
 License:        GPLv2+
 URL:            http://git.fedorahosted.org/git/?p=lorax.git
 Source0:        https://fedorahosted.org/releases/l/o/%{name}/%{name}-%{version}.tar.gz
-
+Patch0:		0001_pass_kernel_version_as_an_arg.patch
 BuildRequires:  python2-devel
 
 Requires:       GConf2
@@ -85,6 +85,7 @@ Anaconda's image install feature.
 %prep
 %setup -q
 
+%patch0 -p1
 %build
 
 %install