Improve comment in last_block_of_file function.

Improve comment in last_block_of_file function.

Signed-off-by: Gert Hulselmans <ghulselmans@users.sourceforge.net>
Fix 'hexdump: bad format {1/1 \"%02x\"}' bug in grub2_info function.

Bash matches (double) quotes outside and inside a $() (subshell)
construct separately.
So we should not escape the double quotes in the subshell to let
hexdump see the double quotes:

  "$(hexdump -v -s ${offset_lzma} -n ${padsize} -e '1/1 \"%02x\"'  ${core_img_file} | tr -d 0)"

Patch provided by <bor@users.sourceforge.net>.

Signed-off-by: Gert Hulselmans <ghulselmans@users.sourceforge.net>
Use last git commit date instead of retrieval date, when updating BIS from git.

Use last git commit date instead of retrieval date, when updating BIS from git.

Signed-off-by: Gert Hulselmans <ghulselmans@users.sourceforge.net>
Merge branch 'master' into github