Run git cl format over zlib BUILD file

Run git cl format over BUILD.gn, and add a line space here and there to
increase readability.

Tbr: cavalcanti@chromium.org
Bug: None
Change-Id: Id46ff314c0fe820880fd441858cbaca6d7754b46
Reviewed-on: https://chromium-review.googlesource.com/912209Reviewed-by: Noel Gordon <noel@chromium.org>
Commit-Queue: Noel Gordon <noel@chromium.org>
Cr-Commit-Position: refs/heads/master@{#536036}

third_party/zlib/BUILD.gn

@@ -242,6 +242,7 @@ static_library("zlib") {
 
 config("minizip_warnings") {
   visibility = [ ":*" ]
+
   if (is_clang) {
     # zlib uses `if ((a == b))` for some reason.
     cflags = [ "-Wno-parentheses-equality" ]
@@ -266,6 +267,7 @@ static_library("minizip") {
       "contrib/minizip/iowin32.h",
     ]
   }
+
   if (is_mac || is_ios || is_android || is_nacl) {
     # Mac, Android and the BSDs don't have fopen64, ftello64, or fseeko64. We
     # use fopen, ftell, and fseek instead on these systems.
@@ -303,7 +305,7 @@ executable("zlib_bench") {
   configs += [ "//build/config/compiler:no_chromium_code" ]
 
   deps = [
-    "//build/config:exe_and_shlib_deps",
     ":zlib",
+    "//build/config:exe_and_shlib_deps",
   ]
 }