(Bug 5221) Uninitialized value warnings in LJ::S2.

Use of uninitialized value $styleid in string eq at
 /dreamhack/home/8103-alierak/dw/cgi-bin/LJ/S2.pm line 61.

Use of uninitialized value $newlay{"i18nc"} in sprintf at
 /dreamhack/home/8103-alierak/dw/cgi-bin/LJ/S2.pm line 1246.

Use of uninitialized value $n in substitution (s///) at
 /dreamhack/home/8103-alierak/dw/cgi-bin/LJ/S2.pm line 2704.
Merge pull request #530 from kareila/5221-warnings

(Bug 5221) Uninitialized value warnings in LJ::S2.