p4.txt: Use backquotes for variable names

For consistency, use backquotes when referring to environment variables, as is done in other man pages. Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Robert P. J. Day committed May 30, 2018 at 09:04 UTC f156a0934a53a4d564933ebce1b832a4e347d78a
1 file changed +5 -5
Documentation/git-p4.txt
+5 -5
@@ -392,7 +392,7 @@ dedicating a client spec just for 'git p4'.
392 The name of the client can be given to 'git p4' in multiple ways. The
393 variable 'git-p4.client' takes precedence if it exists. Otherwise,
394 normal p4 mechanisms of determining the client are used: environment
395 -variable P4CLIENT, a file referenced by P4CONFIG, or the local host name.
395 +variable `P4CLIENT`, a file referenced by `P4CONFIG`, or the local host name.
396
397
398 BRANCH DETECTION
@@ -461,22 +461,22 @@ General variables
461 ~~~~~~~~~~~~~~~~~
462 git-p4.user::
463 User specified as an option to all p4 commands, with '-u <user>'.
464 - The environment variable 'P4USER' can be used instead.
464 + The environment variable `P4USER` can be used instead.
465
466 git-p4.password::
467 Password specified as an option to all p4 commands, with
468 '-P <password>'.
469 - The environment variable 'P4PASS' can be used instead.
469 + The environment variable `P4PASS` can be used instead.
470
471 git-p4.port::
472 Port specified as an option to all p4 commands, with
473 '-p <port>'.
474 - The environment variable 'P4PORT' can be used instead.
474 + The environment variable `P4PORT` can be used instead.
475
476 git-p4.host::
477 Host specified as an option to all p4 commands, with
478 '-h <host>'.
479 - The environment variable 'P4HOST' can be used instead.
479 + The environment variable `P4HOST` can be used instead.
480
481 git-p4.client::
482 Client specified as an option to all p4 commands, with