spelling: Add several corrections

5 jobs from master in 90 minutes and 55 seconds (queued for 5 seconds)
Status Job ID Name Coverage
  Test
passed #146522
stable-bpo

01:30:54

passed #146521
testing

01:23:43

failed #146523
ubuntu-devel

01:24:42

passed #146520
unstable

01:24:42

 
  External
passed jenkins

00:23:41

 
Name Stage Failure
failed
ubuntu-devel Test
  Failed test:  1
Non-zero exit status: 1
debian/test-out/tags/checks/scripts/scripts-uses-perl4-libs-without-dep/generic.t (Wstat: 256 Tests: 1 Failed: 1)
Failed test: 1
Non-zero exit status: 1
Files=1020, Tests=35661, 4760 wallclock secs ( 6.88 usr 3.85 sys + 3395.15 cusr 1128.09 csys = 4533.97 CPU)
Result: FAIL

ERROR: Job failed: exit code 1