print_text_table: untaint $width

The value of $width depends on possible untainted $data (for example
task logs read from external files).

Signed-off-by: Dietmar Maurer <dietmar@proxmox.com>

src/PVE/CLIFormatter.pm

@@ -209,6 +209,8 @@ sub print_text_table {
 		$width = $len if $len > $width;
 	    }
 
+	    $width = ($width =~ m/^(\d+)$/) ? int($1) : 0; # untaint int
+
 	    $rowdata->{$prop} = {
 		lines => $lines,
 		width => $width,