Please consider this shortened version:
Description: Perl module providing stack trace facilities
The Devel::StackTrace module provides two classes, Devel::StackTrace
and Devel::StackTraceFrame.
.
The Devel::StackTrace object encapsulates the information that can be
obtained by using the caller() function, as well as providing a simple
interface to this data.
.
The Devel::StackTrace object contains a set of Devel::StackTraceFrame
objects, one for each level of the stack. The frames contain all the
data available from caller().
The problem here is that after it says there are two of them, D::ST
and D::STF, it's confusing that both of the following paragraphs
appear to be describing D::ST - it's not clear that the second
paragraph is effectively defining D::STF.