[OSSTEST PATCH 2/3] ts-xen-install: nohcp: Invert sense of interfaces loop

[Ian Jackson <ian.jackson@eu.citrix.com>]

We are going to want to process other kinds of lines too.  So change
this loop around by inverting the condition and not using "next".

No functional change.

Signed-off-by: Ian Jackson <Ian.Jackson@eu.citrix.com>
---
 ts-xen-install |    8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/ts-xen-install b/ts-xen-install
index 70e90ed..c59fdd3 100755
--- a/ts-xen-install
+++ b/ts-xen-install
@@ -218,11 +218,13 @@ sub nodhcp () {
 	    # preread /etc/network/interfaces to figure out the interface
 	    my %candidates;
 	    while (<EI>) {
-		next unless
+		if (
 		    m{^ \s* (  auto \s+ (\S+)               ) \s* $}x ||
 		    m{^ \s* (  allow-hotplug \s+ (\S+)      ) \s* $}x ||
-		    m{^ \s* (  iface \s+ (\S+) \s+ inet \s+ ) }x ;
-		push @{ $candidates{$2} }, $1;
+		    m{^ \s* (  iface \s+ (\S+) \s+ inet \s+ ) }x
+		    ) {
+		    push @{ $candidates{$2} }, $1;
+		}
 	    }
 	    EI->error and die $!;
 	    delete $candidates{'lo'};
-- 
1.7.10.4