Minor cleanup in some of the shell scripts in the "tools" directory.
No functional changes.

 * Description header formatting
 * Added missing new line at the end of a file
 * Removed extra new lines at the end of a file
diff --git a/tools/dev/bin/onos-build-selective b/tools/dev/bin/onos-build-selective
index 2fe0188..32b75e7 100755
--- a/tools/dev/bin/onos-build-selective
+++ b/tools/dev/bin/onos-build-selective
@@ -1,7 +1,7 @@
 #!/bin/bash
-#------------------------------------------------------------------------------
+# ----------------------------------------------------------------------------
 # Selectively builds only those projects that contained modified Java files.
-#------------------------------------------------------------------------------
+# ----------------------------------------------------------------------------
 
 projects=$(find $ONOS_ROOT -name '*.java' \
     -not -path '*/openflowj/*' -and -not -path '.git/*' \
@@ -9,4 +9,4 @@
     sort -u | sed "s:$ONOS_ROOT::g" | tr '\n' ',' | \
     sed 's:/,:,:g;s:,/:,:g;s:^/::g;s:,$::g')
 
-[ -n "$projects" ] && cd $ONOS_ROOT && mvn --projects $projects ${@:-clean install}
\ No newline at end of file
+[ -n "$projects" ] && cd $ONOS_ROOT && mvn --projects $projects ${@:-clean install}