Build summary UX

[Aleksey Shipilev]

Hi,

The recent update of jdk9/jdk9 build scripts had significantly
deteriorated the usability of the build summary. This what was printed
before:

------- 8< -------------------------------------------------------------

Building OpenJDK for target 'default' in configuration
'linux-x86_64-normal-server-release'

## Starting langtools
## Finished langtools (build time 00:00:00)

## Starting hotspot
## Finished hotspot (build time 00:00:00)

## Starting corba
## Finished corba (build time 00:00:00)

## Starting jaxp
## Finished jaxp (build time 00:00:01)

## Starting jaxws
## Finished jaxws (build time 00:00:00)

## Starting jdk
## Finished jdk (build time 00:00:01)

----- Build times -------
Start 2014-08-21 18:35:48
End   2014-08-21 18:35:50
00:00:00 corba
00:00:00 hotspot
00:00:01 jaxp
00:00:00 jaxws
00:00:01 jdk
00:00:00 langtools
00:00:02 TOTAL
-------------------------
Finished building OpenJDK for target 'default'

------- 8< -------------------------------------------------------------

...and this is what's printed now:

------- 8< -------------------------------------------------------------

Running make as '/usr/bin/make -s VERBOSE=-s LOG_LEVEL=warn -R -I
/home/shade/trunks/mb-try/make/common -s
SPEC=/home/shade/trunks/mb-try//build/linux-x86_64-normal-server-release/spec.gmk'
Building OpenJDK for target 'default' in configuration
'linux-x86_64-normal-server-release'

----- Build times -------
Start 2014-08-21 18:59:07
End   2014-08-21 18:59:09

00:00:02 TOTAL
-------------------------

Finished building OpenJDK for target 'default'

------- 8< -------------------------------------------------------------

I have no idea whether the modules of interest were actually built, and
this disables me from checking whether the build system picked up my
previous changes. Can we please have the "Starting"/"Finishing" and the
verbose summary back?

Thanks,
-Aleksey.