master - commands: recognize lvm command -?

[David Teigland]

Gitweb:        https://sourceware.org/git/?p=lvm2.git;a=commitdiff;h=955083e625eb003090ce8f...
Commit:        955083e625eb003090ce8f699e8d414a215cce1f
Parent:        8bc89658476d187a6b1d40018bbbac84d389c5be
Author:        David Teigland 
AuthorDate:    Wed Aug 9 15:06:36 2017 -0500
Committer:     David Teigland 
CommitterDate: Wed Aug 9 15:06:36 2017 -0500

commands: recognize lvm command -?

and interpret it as lvm command -h
---
 tools/lvmcmdline.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/tools/lvmcmdline.c b/tools/lvmcmdline.c
index cc1c297..55f72ac 100644
--- a/tools/lvmcmdline.c
+++ b/tools/lvmcmdline.c
@@ -3465,9 +3465,11 @@ int lvm2_main(int argc, char **argv)
    	}
    }

-	/* turn command -? into command -h */
+	/* turn command -? into command -h and lvm command -? into lvm command -h */
    if (alias && (argc > 1) && !strcmp(argv[1], "-?"))
    	argv[1] = (char *)"-h";
+	if (!alias && (argc > 2) && !strcmp(argv[2], "-?"))
+		argv[2] = (char *)"-h";

if (!(cmd = init_lvm(0, 0)))
    	return EINIT_FAILED;