Bug#988685: jssc FTBFS in buster due to a regression in jh_build argument parsing

[Adrian Bunk]

Source: jssc
Version: 2.8.0-1
Severity: serious
Tags: ftbfs
Control: close -1 2.8.0-2

https://tests.reproducible-builds.org/debian/rb-pkg/buster/i386/jssc.html

...
make[1]: Entering directory '/build/jssc-2.8.0'
jh_build -o"-source 1.6 -target 1.6 -encoding UTF-8" --javadoc-opts="-source 1.6 -encoding UTF-8"
Unknown option: source 1.6 -target 1.6 -encoding UTF-8
jh_build: unknown option or error during option parsing; aborting
make[1]: *** [debian/rules:21: override_jh_build] Error 25