Fix Debian bug #478906: Failure when run via ePN

| When perl plugin scripts are run with the embedded perl interpreter in
| nagios3, the "shift" perl command doesn't shift @ARGV, but @_ (which
| happens to contain the same thing as @ARGV at the time the script was
| started).
|
| [...]
|
| A fix is to replace all the instances of "shift" with "shift @ARGV".

[ http://bugs.debian.org/478906 ]

(Fixed by Stephane Chazelas, forwarded by Jan Wagner.)

NEWS

@@ -15,6 +15,7 @@ This file documents the major additions and syntax changes between releases.
 	Fix regression introduced in #1867716 where partially valid performance strings would not be printed anymore
 	Fix regression in check_http ssl checks on some servers - make SNI an option
 	Fix guest mode support in check_disk_smb
+	Fix check_disk_smb failure when run via ePN
 	WARNINGS
 	Updated developer documentation to say that performance labels should not have an equals sign or
 	single quote in the label

THANKS.in

@@ -262,3 +262,4 @@ Jimmy Bergman
 Konstantin Khomoutov
 Josip Rodin
 Dann Frazier
+Stephane Chazelas

plugins-scripts/check_disk_smb.pl

@@ -64,27 +64,27 @@ my $smbclientoptions= $opt_P ? "-p $opt_P " : "";
 
 # Options checking
 
-($opt_H) || ($opt_H = shift) || usage("Host name not specified\n");
+($opt_H) || ($opt_H = shift @ARGV) || usage("Host name not specified\n");
 my $host = $1 if ($opt_H =~ /^([-_.A-Za-z0-9 ]+\$?)$/);
 ($host) || usage("Invalid host: $opt_H\n");
 
-($opt_s) || ($opt_s = shift) || usage("Share volume not specified\n");
+($opt_s) || ($opt_s = shift @ARGV) || usage("Share volume not specified\n");
 my $share = $1 if ($opt_s =~ /^([-_.A-Za-z0-9]+\$?)$/);
 ($share) || usage("Invalid share: $opt_s\n");
 
-($opt_u) || ($opt_u = shift) || ($opt_u = "guest");
+($opt_u) || ($opt_u = shift @ARGV) || ($opt_u = "guest");
 my $user = $1 if ($opt_u =~ /^([-_.A-Za-z0-9\\]+)$/);
 ($user) || usage("Invalid user: $opt_u\n");
 
-($opt_p) || ($opt_p = shift) || ($opt_p = "");
+($opt_p) || ($opt_p = shift @ARGV) || ($opt_p = "");
 my $pass = $1 if ($opt_p =~ /(.*)/);
 $pass = "-N" if ($opt_p eq "");
 
-($opt_w) || ($opt_w = shift) || ($opt_w = 85);
+($opt_w) || ($opt_w = shift @ARGV) || ($opt_w = 85);
 my $warn = $1 if ($opt_w =~ /^([0-9]{1,2}\%?|100\%?|[0-9]+[kMG])$/);
 ($warn) || usage("Invalid warning threshold: $opt_w\n");
 
-($opt_c) || ($opt_c = shift) || ($opt_c = 95);
+($opt_c) || ($opt_c = shift @ARGV) || ($opt_c = 95);
 my $crit = $1 if ($opt_c =~ /^([0-9]{1,2}\%?|100\%?|[0-9]+[kMG])$/);
 ($crit) || usage("Invalid critical threshold: $opt_c\n");