error in version check of maven in build.sh

[holgerjakobs]

The command gathering the Maven version in build.sh should read
MAVEN_VERSION=$(mvn --version | grep -o '3.' | head -n 1)

The original (with head first and then grep) writes "3.\n3." into the variable which is different from "3."

[kmoppel]

Hi, thanks for the report!
But for me (Ubuntu+Bash 4.3.11) actually the output ("3.") seems correct...what kind of system are you using? Maybe we can make it more universal indeed.

[kmoppel]

@Pelleplutt Hi. Couldn't grasp the context of your comment:) Is there something that's not working for you?

[Pelleplutt]

@kmoppel my message was related to the issue reported by @holgerjakobs about version numbering. All is fine for me. But reading this thread less hastily now I see that it was premature. Please ignore.