RFR(XXS): 8066766: The commands in the modular images are executable by the owner only

[Volker Simonis]

Hi,

after the integration of the modular changes into jdk9-dev the
executable commands in jdk/bin and jre/bin images are only executable
by the file owner. This means that only the user who built the images
can execute the programs.

This can be easily fixed with the following trivial change:

http://cr.openjdk.java.net/~simonis/webrevs/8066766/
https://bugs.openjdk.java.net/browse/JDK-8066766

Thanks,
Volker