Run buildifer on Bazel files

buildifier autoformats the files to give a consistent style. This makes
edits easier for contributors that have their editor set to
autoformat-on-save.

WORKSPACE

@@ -2,14 +2,14 @@ workspace(name = "grpc_ecosystem_grpc_gateway")
 
 http_archive(
     name = "io_bazel_rules_go",
-    url = "https://github.com/bazelbuild/rules_go/releases/download/0.12.1/rules_go-0.12.1.tar.gz",
     sha256 = "8b68d0630d63d95dacc0016c3bb4b76154fe34fca93efd65d1c366de3fcb4294",
+    url = "https://github.com/bazelbuild/rules_go/releases/download/0.12.1/rules_go-0.12.1.tar.gz",
 )
 
 http_archive(
     name = "bazel_gazelle",
-    url = "https://github.com/bazelbuild/bazel-gazelle/releases/download/0.10.1/bazel-gazelle-0.10.1.tar.gz",
     sha256 = "d03625db67e9fb0905bbd206fa97e32ae9da894fe234a493e7517fd25faec914",
+    url = "https://github.com/bazelbuild/bazel-gazelle/releases/download/0.10.1/bazel-gazelle-0.10.1.tar.gz",
 )
 
 load("@io_bazel_rules_go//go:def.bzl", "go_repository")
@@ -39,16 +39,16 @@ go_repository(
 
 # Also define in Gopkg.toml
 go_repository(
-	name = "com_github_ghodss_yaml",
-	commit = "0ca9ea5df5451ffdf184b4428c902747c2c11cd7",
-	importpath = "github.com/ghodss/yaml",
+    name = "com_github_ghodss_yaml",
+    commit = "0ca9ea5df5451ffdf184b4428c902747c2c11cd7",
+    importpath = "github.com/ghodss/yaml",
 )
 
 # Also define in Gopkg.toml
 go_repository(
-	name = "in_gopkg_yaml_v2",
-	commit = "eb3733d160e74a9c7e442f435eb3bea458e1d19f",
-	importpath = "gopkg.in/yaml.v2",
+    name = "in_gopkg_yaml_v2",
+    commit = "eb3733d160e74a9c7e442f435eb3bea458e1d19f",
+    importpath = "gopkg.in/yaml.v2",
 )
 
 repositories()

examples/clients/abe/BUILD.bazel

@@ -29,6 +29,6 @@ go_library(
         "//examples/proto/examplepb:go_default_library",
         "//examples/proto/pathenum:go_default_library",
         "//runtime:go_default_library",
-        "@com_github_go_resty_resty//:go_default_library"
+        "@com_github_go_resty_resty//:go_default_library",
     ],
 )

examples/proto/examplepb/BUILD.bazel

@@ -17,10 +17,10 @@ proto_library(
         "a_bit_of_everything.proto",
         "echo_service.proto",
         "flow_combination.proto",
+        "response_body_service.proto",
         "stream.proto",
         "unannotated_echo_service.proto",
         "wrappers.proto",
-        "response_body_service.proto",
     ],
     deps = [
         "//examples/proto/pathenum:pathenum_proto",

examples/server/BUILD.bazel

@@ -9,8 +9,8 @@ go_library(
         "echo.go",
         "flow_combination.go",
         "main.go",
-        "unannotatedecho.go",
         "responsebody.go",
+        "unannotatedecho.go",
     ],
     importpath = "github.com/grpc-ecosystem/grpc-gateway/examples/server",
     deps = [

runtime/BUILD.bazel

@@ -73,8 +73,8 @@ go_test(
         "@com_github_golang_protobuf//ptypes/struct:go_default_library",
         "@com_github_golang_protobuf//ptypes/timestamp:go_default_library",
         "@com_github_golang_protobuf//ptypes/wrappers:go_default_library",
-        "@org_golang_google_genproto//protobuf/field_mask:go_default_library",
         "@org_golang_google_genproto//googleapis/rpc/errdetails:go_default_library",
+        "@org_golang_google_genproto//protobuf/field_mask:go_default_library",
         "@org_golang_google_grpc//:go_default_library",
         "@org_golang_google_grpc//codes:go_default_library",
         "@org_golang_google_grpc//metadata:go_default_library",