8013736: [launcher] cleanup code for correctness
8005735: [parfait] False positive integer overflow in jdk/src/solaris/bin/jexec.c
8009873: [parfait] Memory leak at jdk/src/share/bin/wildcard.c
8005807: [parfait] Undefined return value at jdk/src/share/bin/java.c
Reviewed-by: alanb, martin