pkg/30955: print-pkg-size-this produces "", not 0, for file-less package (such as metapackage)

[nbgnats%anastigmatix.net@localhost]

>Number:         30955
>Category:       pkg
>Synopsis:       print-pkg-size-this produces "", not 0, for file-less package 
>(such as metapackage)
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    pkg-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Aug 10 00:04:00 +0000 2005
>Originator:     Chapman Flack
>Release:        2.0.0 (irrelevant to issue)
>Organization:
>Environment:
NetBSD lundestad.anastigmatix.net 2.0 NetBSD 2.0 (lundestad) #11: Sat Mar  5 
14:01:49 EST 2005  xxx@xxx:/usr/src/sys/arch/i386/compile/lundestad i386 
(irrelevant to issue)
>Description:
If a package, such as a metapackage, has no files, the print-pkg-size-this 
target produces an empty string, not 0.
>How-To-Repeat:

>Fix:
--- /tmp/bsd.pkg.mk     2005-08-09 14:32:15.000000000 -0500
+++ /tmp/bsd.pkg.mk     2005-08-09 19:04:29.000000000 -0500
@@ -3974,7 +3974,7 @@
        | ${SORT} -u                                                    \
        | ${SED} -e "s/'/'\\\\''/g" -e "s/.*/'&'/"                      \
        | ${XARGS} -n 256 ${LS} -ld                                     \
-       | ${AWK} '{ s += $$5; } END { print s; }'                       \
+       | ${AWK} '{ s += $$5; } END { print 0 + s; }'                   \
 
 # Sizes of required pkgs (only)
 #