Adjust hs_err output in malloc/mmap error cases

Some of the error output could be improved. Currently it says :

# There is insufficient memory for the Java Runtime Environment to continue.
# Native memory allocation (mmap) failed to map 65536 bytes for Failed to commit metaspace.
# Possible reasons:
# .....
# The process is running with CompressedOops enabled, and the Java Heap may be blocking the growth of the native heap

The output 'bytes for Failed to commit metaspace.' should be rephrased.
The reason should be more clear that it really IS the case for the current JVM that CompressedOops is set.