Merge pull request #1042 from rear/jsmeix-only-last-LOADER_TYPE-matte…

…rs_issue1038

Update 50_guess_bootloader.sh:
Added 'tail -n1' to get only the last value if there are more than one
because getting values from sysconfig files is like sourcing
a shell script it is the last setting that matters.

usr/share/rear/prep/default/50_guess_bootloader.sh

@@ -2,7 +2,8 @@
 # /var/lib/rear/recovery/bootloader
 if [[ -f /etc/sysconfig/bootloader ]]; then
     # openSUSE uses LOADER_TYPE, and others??
-    my_bootloader=$( grep ^LOADER_TYPE /etc/sysconfig/bootloader | cut -d= -f2 | sed -e 's/"//g' )
+    # getting values from sysconfig files is like sourcing shell scripts so that the last setting wins
+    my_bootloader=$( grep ^LOADER_TYPE /etc/sysconfig/bootloader | cut -d= -f2 | tail -n1 | sed -e 's/"//g' )
     if [[ ! -z "$my_bootloader" ]]; then
         echo "$my_bootloader" | tr '[a-z]' '[A-Z]' >$VAR_DIR/recovery/bootloader
         return