PROG_DIR incorrectly set resulting in log4j:ERROR Ignoring configuration file [file://./conf/log4j.properties]

[robert-s-lee]

bin/jsqsh does not reliably work to identify dirname of the jsqsh

https://github.com/scgray/jsqsh/blob/master/jsqsh-dist/dist/unix/jsqsh#L16

the PROG_DIR is . resulting in the err message

arcion@4b5153db9d81:/opt/jsqsh/jsqsh-dist-3.0-SNAPSHOT$ bin/jsqsh
log4j:ERROR Could not read configuration file from URL [file://./conf/log4j.properties].
java.net.UnknownHostException: .
        at java.base/sun.nio.ch.NioSocketImpl.connect(NioSocketImpl.java:567)
        at java.base/java.net.Socket.connect(Socket.java:633)
        at java.base/sun.net.ftp.impl.FtpClient.doConnect(FtpClient.java:1045)
        at java.base/sun.net.ftp.impl.FtpClient.tryConnect(FtpClient.java:1010)
        at java.base/sun.net.ftp.impl.FtpClient.connect(FtpClient.java:1102)
        at java.base/sun.net.ftp.impl.FtpClient.connect(FtpClient.java:1088)
        at java.base/sun.net.www.protocol.ftp.FtpURLConnection.connect(FtpURLConnection.java:320)
        at java.base/sun.net.www.protocol.ftp.FtpURLConnection.getInputStream(FtpURLConnection.java:426)
        at org.apache.log4j.PropertyConfigurator.doConfigure(PropertyConfigurator.java:557)
        at org.apache.log4j.helpers.OptionConverter.selectAndConfigure(OptionConverter.java:526)
        at org.apache.log4j.LogManager.<clinit>(LogManager.java:127)
        at org.apache.log4j.Logger.getLogger(Logger.java:104)
        at org.apache.commons.logging.impl.Log4JLogger.getLogger(Log4JLogger.java:262)
        at org.apache.commons.logging.impl.Log4JLogger.<init>(Log4JLogger.java:108)
        at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:77)
        at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:499)
        at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:480)
        at org.apache.commons.logging.impl.LogFactoryImpl.createLogFromClass(LogFactoryImpl.java:1025)
        at org.apache.commons.logging.impl.LogFactoryImpl.discoverLogImplementation(LogFactoryImpl.java:844)
        at org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:541)
        at org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:292)
        at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:669)
        at org.apache.commons.digester3.Digester.<init>(Digester.java:282)
        at org.sqsh.CommandManager.load(CommandManager.java:149)
        at org.sqsh.CommandManager.init(CommandManager.java:132)
        at org.sqsh.CommandManager.<init>(CommandManager.java:54)
        at org.sqsh.SqshContext.<init>(SqshContext.java:108)
        at org.sqsh.SqshContext.getThreadLocal(SqshContext.java:355)
        at org.sqsh.JSqsh.main(JSqsh.java:158)
log4j:ERROR Ignoring configuration file [file://./conf/log4j.properties].
log4j:WARN No appenders could be found for logger (org.apache.commons.digester3.Digester.sax).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
Welcome to JSqsh 3.0-SNAPSHOT
Type "\help" for help topics, "quit" to exit.