Documentation: bisect: change a few instances of "git-cmd" to "git cmd"

Signed-off-by: NChristian Couder <chriscool@tuxfamily.org>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Documentation/git-bisect.txt

@@ -26,7 +26,7 @@ on the subcommand:
  git bisect log
  git bisect run <cmd>...
 
-This command uses 'git-rev-list --bisect' to help drive the
+This command uses 'git rev-list --bisect' to help drive the
 binary search process to find which change introduced a bug, given an
 old "good" commit object name and a later "bad" commit object name.
 
@@ -101,7 +101,7 @@ $ git bisect visualize
 to see the currently remaining suspects in 'gitk'.  `visualize` is a bit
 too long to type and `view` is provided as a synonym.
 
-If 'DISPLAY' environment variable is not set, 'git-log' is used
+If 'DISPLAY' environment variable is not set, 'git log' is used
 instead.  You can even give command line options such as `-p` and
 `--stat`.
 
@@ -215,7 +215,7 @@ tweaks (e.g., s/#define DEBUG 0/#define DEBUG 1/ in a header file, or
 work around other problem this bisection is not interested in")
 applied to the revision being tested.
 
-To cope with such a situation, after the inner 'git-bisect' finds the
+To cope with such a situation, after the inner 'git bisect' finds the
 next revision to test, with the "run" script, you can apply that tweak
 before compiling, run the real test, and after the test decides if the
 revision (possibly with the needed tweaks) passed the test, rewind the