Rename translation units containing main() to main.cpp

Also unify style of argv declaration

Change-Id: I1dcb8689b1cd38e042a0b1f05be7f98bd2d487ed
diff --git a/tools/chunks/wscript b/tools/chunks/wscript
index a6b2ead..417bbf6 100644
--- a/tools/chunks/wscript
+++ b/tools/chunks/wscript
@@ -5,24 +5,24 @@
 
     bld.objects(
         target='ndncatchunks-objects',
-        source=bld.path.ant_glob('catchunks/*.cpp', excl='catchunks/ndncatchunks.cpp'),
+        source=bld.path.ant_glob('catchunks/*.cpp', excl='catchunks/main.cpp'),
         use='core-objects')
 
     bld.program(
         target='../../bin/ndncatchunks',
         name='ndncatchunks',
-        source='catchunks/ndncatchunks.cpp',
+        source='catchunks/main.cpp',
         use='ndncatchunks-objects')
 
     bld.objects(
         target='ndnputchunks-objects',
-        source=bld.path.ant_glob('putchunks/*.cpp', excl='putchunks/ndnputchunks.cpp'),
+        source=bld.path.ant_glob('putchunks/*.cpp', excl='putchunks/main.cpp'),
         use='core-objects')
 
     bld.program(
         target='../../bin/ndnputchunks',
         name='ndnputchunks',
-        source='putchunks/ndnputchunks.cpp',
+        source='putchunks/main.cpp',
         use='ndnputchunks-objects')
 
     ## (for unit tests)