#42 fix tuxguitar.sh wrapper script not finding java installation

[void witch]

on my fedora 33 machine, the java binary is installed to ${JAVA_HOME}/bin/java, but the wrapper script defaults to ${JAVA_HOME}/jre/bin/java which doesn't exist

this was working a few days ago, so something must have changed in fedora's upstream recently. i tried reinstalling tuxguitar, openjdk 1.8, and openjdk 11, no dice. tried symlinking the java binary and it began complaining about missing shared libraries. this patch fixed it for me

$ java --version
openjdk 11.0.9.1 2020-11-04
OpenJDK Runtime Environment 18.9 (build 11.0.9.1+11)
OpenJDK 64-Bit Server VM 18.9 (build 11.0.9.1+11, mixed mode, sharing)

[void witch]

also please let me know if i screwed something up; first time using sourceforge and svn, i have literally no idea what i'm doing lol