Bazel: Reformat build files

Reformat the Bazel build files with the buildifier tool [1].

The style is different for Bazel files. Most notably, indentation level
is 4 spaces instead of 2, and " is used instead of '.

[1] https://github.com/bazelbuild/buildifier

Change-Id: I95c0c6f11b6d76572797853b4ebb5cee5ebd3c98
diff --git a/lib/httpcomponents/BUILD b/lib/httpcomponents/BUILD
index c11df29..2b2cc6f 100644
--- a/lib/httpcomponents/BUILD
+++ b/lib/httpcomponents/BUILD
@@ -1,53 +1,53 @@
-package(default_visibility = ['//visibility:public'])
+package(default_visibility = ["//visibility:public"])
 
 java_library(
-  name = 'fluent-hc',
-  exports = ['@fluent_hc//jar'],
-  runtime_deps = [':httpclient'],
-  visibility = ['//visibility:public'],
-  data = ['//lib:LICENSE-Apache2.0'],
+    name = "fluent-hc",
+    data = ["//lib:LICENSE-Apache2.0"],
+    visibility = ["//visibility:public"],
+    exports = ["@fluent_hc//jar"],
+    runtime_deps = [":httpclient"],
 )
 
 java_library(
-  name = 'httpclient',
-  exports = ['@httpclient//jar'],
-  runtime_deps = [
-    '//lib/commons:codec',
-    ':httpcore',
-    '//lib/log:jcl-over-slf4j',
-  ],
-  visibility = ['//visibility:public'],
-  data = ['//lib:LICENSE-Apache2.0'],
+    name = "httpclient",
+    data = ["//lib:LICENSE-Apache2.0"],
+    visibility = ["//visibility:public"],
+    exports = ["@httpclient//jar"],
+    runtime_deps = [
+        ":httpcore",
+        "//lib/commons:codec",
+        "//lib/log:jcl-over-slf4j",
+    ],
 )
 
 java_library(
-  name = 'httpcore',
-  exports = ['@httpcore//jar'],
-  visibility = ['//visibility:public'],
-  data = ['//lib:LICENSE-Apache2.0'],
+    name = "httpcore",
+    data = ["//lib:LICENSE-Apache2.0"],
+    visibility = ["//visibility:public"],
+    exports = ["@httpcore//jar"],
 )
 
 java_library(
-  name = 'httpmime',
-  exports = ['@httpmime//jar'],
-  visibility = ['//visibility:public'],
-  data = ['//lib:LICENSE-Apache2.0'],
+    name = "httpmime",
+    data = ["//lib:LICENSE-Apache2.0"],
+    visibility = ["//visibility:public"],
+    exports = ["@httpmime//jar"],
 )
 
 java_library(
-  name = 'httpasyncclient',
-  exports = [ '@httpasyncclient//jar' ],
-  data = ['//lib:LICENSE-Apache2.0'],
+    name = "httpasyncclient",
+    data = ["//lib:LICENSE-Apache2.0"],
+    exports = ["@httpasyncclient//jar"],
 )
 
 java_library(
-  name = 'httpcore-nio',
-  exports =  [ '@httpcore_nio//jar' ],
-  data = ['//lib:LICENSE-Apache2.0'],
+    name = "httpcore-nio",
+    data = ["//lib:LICENSE-Apache2.0"],
+    exports = ["@httpcore_nio//jar"],
 )
 
 java_library(
-  name = 'httpcore-niossl',
-  exports = ['@httpcore_niossl//jar'],
-  data = ['//lib:LICENSE-Apache2.0'],
+    name = "httpcore-niossl",
+    data = ["//lib:LICENSE-Apache2.0"],
+    exports = ["@httpcore_niossl//jar"],
 )