UMR (uninitialized memory read) detected by memory tool

When using "Purify 2002a.06.00" on "SunOS 5.7" a I got UMR (unitialized memory
read). After further investigations I found that the variable curType
DTDScanner::scanChildren is used on lines 1267 and 1319 without having been
initialized.

I corrected the defect by initializing curType on line 1177 to
ContentSpecNode::UnknownType, as by the diff output below.

1177c1177
< ContentSpecNode::NodeTypes curType;
—
> ContentSpecNode::NodeTypes curType = ContentSpecNode::UnknownType;

After this change Purify did not report any UMR.