Added missing arguments to the Linux man page

src/linux/usr/share/man/man1/sbt.1

@@ -16,11 +16,11 @@ Runs the Simple Build Tool using the currently installed
 .BR java (1)
 The current directory is assumed to be the project.
 .SH OPTIONS
-.IP -h
+.IP "-h, -help"
 Show help options.
-.IP "-verbose | -v"
+.IP "-v, -verbose"
 turn up the noise
-.IP "-debug or -d"
+.IP "-d, -debug"
 set sbt log level to debug
 .IP -no-colors
 disable ANSI color codes
@@ -38,6 +38,10 @@ set memory options (default: $sbt_mem, which is $(get_mem_opts $sbt_mem))
 use all local caches; no sharing
 .IP "-no-global"
 uses global caches, but does not use global ~/.sbt directory.
+.IP "-jvm-debug <port>"
+Turn on JVM debugging, open at the given port.
+.IP -batch
+Disable interactive mode
 .IP -offline
 put sbt in offline mode
 .SH SBT Version Options
@@ -72,6 +76,8 @@ alternate JAVA_HOME
 pass -Dkey=val directly to the java runtime
 .IP -J-X
 pass option -X directly to the java runtime (-J is stripped)
+.IP -S-X
+add -X to sbt's scalacOptions (-S is stripped)
 .SH FILES
 .I ~/.sbt
 .RS
@@ -79,8 +85,12 @@ The user configuration file.
 .RE
 .I ".sbtopts"
 .RS
-If this file exists in the sbt root, it is prepended to the
+if this file exists in the current directory, it is prepended to the
 runner args.
+.RE
+.I "/etc/sbt/sbtopts"
+.RS
+if this file exists, it is prepended to the runner args
 .SH ENVIRONMENT
 .IP JAVA_OPTS
 If non-null a set of arguments passed to java.