The previous attempt to fix git version parsing in commit d34cefad17
("meson: Fix git version parsing") was too naive, and didn't take into
account cases where the libcamera git version contains no or multiple
'+' signs.
Fixing this is more complex than a one-liner change, as meson doesn't
support Python-style slicing of arrays or a length method on strings.
The simplest and most versatile option is to patch the version string in
the gen-version.sh script. Do so, and clarify the comments related to
version handling in meson.build.
Fixes: d34cefad17 ("meson: Fix git version parsing")
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
4cd9cb4a90