Launcher: do not mention that JAVA_HOME was set
Launcher: do not mention that JAVA_HOME was set

On Windows, that little innocuous debug message would trigger a
console window, which most Windows users do not want to see.

Signed-off-by: Johannes Schindelin <53fb8db7833fca1e1746dd8592f61048d350f64c@gmx.de>

imagej/imagej-launcher,imagej/imagej-launcher,imagej/imagej-launcher