Method ignores results of InputStream.skip()

Method ignores results of InputStream.skip()

This method ignores the return value of java.io.InputStream.skip()
which can skip multiple bytes.  If the return value is not checked,
the caller will not be able to correctly handle the case where
fewer bytes were skipped than the caller requested. This is
a particularly insidious kind of bug, because in many programs,
skips from input streams usually do skip the full amount of data
requested, causing the program to fail only sporadically. With
buffered streams, however, skip() will only skip data in the buffer,
and will routinely fail to skip the requested number of bytes.

Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>