Add extra newline before imports added to bazelrc.s

Fixes #129.

Change-Id: Id95148327de96b88d55f1a6cd52bae3155c0744e
diff --git a/jenkins/jobs/configs/tensorflow.json b/jenkins/jobs/configs/tensorflow.json
index fe7f4b7..36cbe51 100644
--- a/jenkins/jobs/configs/tensorflow.json
+++ b/jenkins/jobs/configs/tensorflow.json
@@ -11,7 +11,7 @@
         ],
         "parameters": {
             "configure": [
-                "echo 'import %workspace%/.bazelrc' >>bazel.bazelrc",
+                "echo -e '\nimport %workspace%/.bazelrc' >>bazel.bazelrc",
                 "touch .bazelrc",
                 "./tensorflow/tools/ci_build/builds/configured CPU"
             ],
diff --git a/jenkins/jobs/configs/tensorflow_serving.json b/jenkins/jobs/configs/tensorflow_serving.json
index a29f8e5..bdaa583 100644
--- a/jenkins/jobs/configs/tensorflow_serving.json
+++ b/jenkins/jobs/configs/tensorflow_serving.json
@@ -12,7 +12,7 @@
         "parameters": {
             "configure": [
                 "(cd tensorflow && ./tensorflow/tools/ci_build/builds/configured CPU)",
-                "echo 'import %workspace%/tensorflow/.tf_configure.bazelrc' >>bazel.bazelrc",
+                "echo -e '\nimport %workspace%/tensorflow/.tf_configure.bazelrc' >>bazel.bazelrc",
                 "$BAZEL clean" // Clean to work around bazelbuild/bazel#3664
             ],
             "tests": ["tensorflow_serving/... - //tensorflow_serving/model_servers:tensorflow_model_server_test"],
diff --git a/jenkins/jobs/configs/tf_models_syntaxnet.json b/jenkins/jobs/configs/tf_models_syntaxnet.json
index 0ff303b..1a3660d 100644
--- a/jenkins/jobs/configs/tf_models_syntaxnet.json
+++ b/jenkins/jobs/configs/tf_models_syntaxnet.json
@@ -12,7 +12,7 @@
         "parameters": {
             "configure": [
                 "(cd tensorflow && ./tensorflow/tools/ci_build/builds/configured CPU)",
-                "echo 'import %workspace%/tensorflow/.tf_configure.bazelrc' >>bazel.bazelrc",
+                "echo -e '\nimport %workspace%/tensorflow/.tf_configure.bazelrc' >>bazel.bazelrc",
                 "$BAZEL clean" // Clean to work around bazelbuild/bazel#3664
             ],
             "tests": ["syntaxnet/... - //syntaxnet:beam_reader_ops_test - //syntaxnet:graph_builder_test - //syntaxnet:lexicon_builder_test - //syntaxnet:parser_trainer_test - //syntaxnet:reader_ops_test - //syntaxnet:text_formats_test - //syntaxnet/util:check_test - //syntaxnet/util:registry_test", "util/utf8/..."],