buildman: Rename do_build to config_only

This variable name is needlessly confusion. Adjust it to use a 'positive'
name instead.

Signed-off-by: Simon Glass <sjg@chromium.org>

tools/buildman/builderthread.py

@@ -110,7 +110,7 @@ class BuilderThread(threading.Thread):
         return self.builder.do_make(commit, brd, stage, cwd, *args,
                 **kwargs)
 
-    def RunCommit(self, commit_upto, brd, work_dir, do_config, do_build,
+    def RunCommit(self, commit_upto, brd, work_dir, do_config, config_only,
                   force_build, force_build_failures):
         """Build a particular commit.
 
@@ -122,7 +122,7 @@ class BuilderThread(threading.Thread):
             brd: Board object to build
             work_dir: Directory to which the source will be checked out
             do_config: True to run a make <board>_defconfig on the source
-            do_build: Try to build the source
+            config_only: Only configure the source, do not build it
             force_build: Force a build even if one was previously done
             force_build_failures: Force a bulid if the previous result showed
                 failure
@@ -232,7 +232,7 @@ class BuilderThread(threading.Thread):
                     config_out += result.combined
                     do_config = False   # No need to configure next time
                 if result.return_code == 0:
-                    if not do_build:
+                    if config_only:
                         args.append('cfg')
                     result = self.Make(commit, brd, 'build', cwd, *args,
                             env=env)
@@ -404,7 +404,7 @@ class BuilderThread(threading.Thread):
             force_build = False
             for commit_upto in range(0, len(job.commits), job.step):
                 result, request_config = self.RunCommit(commit_upto, brd,
-                        work_dir, do_config, not self.builder.config_only,
+                        work_dir, do_config, self.builder.config_only,
                         force_build or self.builder.force_build,
                         self.builder.force_build_failures)
                 failed = result.return_code or result.stderr
@@ -458,7 +458,7 @@ class BuilderThread(threading.Thread):
         else:
             # Just build the currently checked-out build
             result, request_config = self.RunCommit(None, brd, work_dir, True,
-                        not self.builder.config_only, True,
+                        self.builder.config_only, True,
                         self.builder.force_build_failures)
             result.commit_upto = 0
             self._WriteResult(result, job.keep_outputs)