update comment on -p
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@@ -341,7 +341,7 @@
 				-p
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-				Do exhaustive LP coefficient quantization optimization.  This option overrides any <B><TT>-q</TT></B> option.  It is expensive and typically will only improve the compression a tiny fraction of a percent.
+				Do exhaustive LP coefficient quantization optimization.  This option overrides any <B><TT>-q</TT></B> option.  It is expensive and typically will only improve the compression a tiny fraction of a percent.  <B><TT>-q</TT></B> has no effect when <B><TT>-l 0</TT></B> is used.
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