make: fix help message reference to bogus V=0 variable

The make rules for building QEMU are mostly silent by default. They can
be made verbose by setting the variable V=1. The default state does not
however correspond to a V=0 setting - $(V) must be undefined / empty to
get the default quiet build.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-Id: <20180123164718.12714-3-berrange@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/Makefile b/Makefile
index 9b4291b..b5a6d60 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -958,4 +958,5 @@ ifdef QEMU_GA_MSI_ENABLED
 endif
        @echo  ''
 endif
-       @echo  '  $(MAKE) V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
+       @echo  '  $(MAKE) [targets]      (quiet build, default)'
+       @echo  '  $(MAKE) V=1 [targets]  (verbose build)'