grouper installer should ignore if no dos2unix (try in java?)

SEVERE: Error running command: dos2unix /opt/grouper-2.3.0/grouper.apiBinary-2.3.0/bin/gsh.sh
java.io.IOException: Cannot run program "dos2unix" (in directory "/opt/grouper-2.3.0/grouper.apiBinary-2.3.0/bin"): error=2, No such file or directory
at java.lang.ProcessBuilder.start(ProcessBuilder.java:1047)
at java.lang.Runtime.exec(Runtime.java:617)
at edu.internet2.middleware.grouperInstaller.util.GrouperInstallerUtils.execCommandHelper(GrouperInstallerUtils.java:10058)
at edu.internet2.middleware.grouperInstaller.util.GrouperInstallerUtils.access$100(GrouperInstallerUtils.java:128)
at edu.internet2.middleware.grouperInstaller.util.GrouperInstallerUtils$2.run(GrouperInstallerUtils.java:10009)
at edu.internet2.middleware.grouperInstaller.util.GrouperInstallerUtils$1.run(GrouperInstallerUtils.java:8259)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.io.IOException: error=2, No such file or directory
at java.lang.UNIXProcess.forkAndExec(Native Method)
at java.lang.UNIXProcess.<init>(UNIXProcess.java:186)
at java.lang.ProcessImpl.start(ProcessImpl.java:130)
at java.lang.ProcessBuilder.start(ProcessBuilder.java:1028)
... 6 more

Error: Error running command,
java.lang.RuntimeException: caller stack
at edu.internet2.middleware.grouperInstaller.util.GrouperInstallerUtils.threadRunWithStatusDots(GrouperInstallerUtils.java:8312)
at edu.internet2.middleware.grouperInstaller.util.GrouperInstallerUtils.execCommand(GrouperInstallerUtils.java:10014)
at edu.internet2.middleware.grouperInstaller.util.GrouperInstallerUtils.execCommand(GrouperInstallerUtils.java:9979)
at edu.internet2.middleware.grouperInstaller.GrouperInstaller.gshExcutableAndDos2Unix(GrouperInstaller.java:6536)
at edu.internet2.middleware.grouperInstaller.GrouperInstaller.gshExcutableAndDos2Unix(GrouperInstaller.java:6467)
at edu.internet2.middleware.grouperInstaller.GrouperInstaller.downloadAndConfigureApi(GrouperInstaller.java:6451)
at edu.internet2.middleware.grouperInstaller.GrouperInstaller.mainInstallLogic(GrouperInstaller.java:6112)
at edu.internet2.middleware.grouperInstaller.GrouperInstaller.access$300(GrouperInstaller.java:78)
at edu.internet2.middleware.grouperInstaller.GrouperInstaller$GrouperInstallerMainFunction$1.logic(GrouperInstaller.java:970)
at edu.internet2.middleware.grouperInstaller.GrouperInstaller.mainLogic(GrouperInstaller.java:1032)
at edu.internet2.middleware.grouperInstaller.GrouperInstaller.main(GrouperInstaller.java:303)

NOTE: you might need to run this to convert newline characters to mac/unix:

cat /opt/grouper-2.3.0/grouper.apiBinary-2.3.0/bin/gsh.sh | col -b > /opt/grouper-2.3.0/grouper.apiBinary-2.3.0/bin/gsh.sh

cat /opt/grouper-2.3.0/grouper.apiBinary-2.3.0/bin/gsh | col -b > /opt/grouper-2.3.0/grouper.apiBinary-2.3.0/bin/gsh