fix some typos found by Lintian

Gbp-Pq: Name fix-typos.patch

With the introduction of nvidia-uvm module, unloading nvidia module will fail unless nvidia-uvm is unloaded.  GH-565 suggests using "remove" or "softdep" modprobe.d clauses to teach modprobe to handle that for us; "rmmod" does not have that functionality, so switch to "modprobe -r".

Origin: upstream, https://github.com/Bumblebee-Project/Bumblebee/commit/1ada79fe5916961fc4e4917f8c63bb184908d986
Bug: https://github.com/Bumblebee-Project/Bumblebee/issues/565
Bug-Debian: 793389

Gbp-Pq: Name modprobe-r-instead-of-rmmod.patch

Ignore error on X shutdown

Origin: upstream, https://github.com/Bumblebee-Project/Bumblebee/commit/25387e92822fb1a56fa43f1f9f636b987018d068

Gbp-Pq: Name ignore-error-on-X-shutdown.patch

Fix detection of devices on bus numbers larger than 9

Origin: upstream, https://github.com/Bumblebee-Project/Bumblebee/commit/2073f8537412aa47755eb6f3f22a114403e5285b
Bug: https://github.com/Bumblebee-Project/Bumblebee/issues/573

Gbp-Pq: Name fix-device-detection.patch

bumblebee (3.2.1-14) unstable; urgency=medium

  * Add dependency to lsb-base (>= 3.0-6) to fix Lintian Error
  * Add blacklist and dependency for nvidia-367*

[dgit import unpatched bumblebee 3.2.1-14]

Import bumblebee_3.2.1-14.debian.tar.xz

[dgit import tarball bumblebee 3.2.1-14 bumblebee_3.2.1-14.debian.tar.xz]

Import bumblebee_3.2.1.orig.tar.gz

[dgit import orig bumblebee_3.2.1.orig.tar.gz]