pkg/53318: audio/espeak exits midway through text when --stdout is set

[mayuresh%acm.org@localhost]

>Number:         53318
>Category:       pkg
>Synopsis:       audio/espeak exits midway through text when --stdout is set
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    pkg-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun May 27 03:50:00 +0000 2018
>Originator:     Mayuresh
>Release:        pkgsrc-current last upd Sat May 26 13:25:55 2018 +0000
>Organization:
>Environment:
NetBSD localhost 8.0_RC1 NetBSD 8.0_RC1 (GENERIC.201804191727Z) amd64 x86_64 Intel 686-class NetBSD
>Description:
When using --stdout option, and reading text from stdin, espeak exits at an arbitrary point with no error skipping rest of the file.
>How-To-Repeat:
cat <some multiline text file> | espeak --stdout > tmpfile

No specific pattern is found regarding on what kind of input this happens. E.g. number of lines, specific words, length of speech etc. It may happen repeatably on certain text but may not happen on other text of same length.
>Fix:
Tried version 1.48.03 on Linux on same text. It does not have this problem. pkg version is 1.31. Upgrading to latest may solve the problem.