Fix style

Author: lcawl

specification/_global/exists/examples/xCodeSamples/DocumentExistsConsoleExample1.yaml

@@ -1,4 +1,4 @@
 lang: Console
-# label: 
+# label:
 source: |
   HEAD my-index-000001/_doc/0

specification/_global/exists/examples/xCodeSamples/DocumentExistsCurlExample1.yaml

@@ -1,4 +1,4 @@
 lang: Curl
-# label: 
+# label:
 source: |
   curl -I "localhost:9200/my-index-000001/_doc/0?pretty"

specification/_global/exists/examples/xCodeSamples/DocumentExistsJavaScriptExample1.yaml

@@ -1,8 +1,8 @@
 lang: JavaScript
-# label: 
+# label:
 source: |
   const response = await client.exists({
     index: "my-index-000001",
     id: 0,
   });
-  console.log(response);
+  console.log(response);

specification/_global/exists/examples/xCodeSamples/DocumentExistsPythonExample1.yaml

@@ -1,8 +1,8 @@
 lang: Python
-# label: 
+# label:
 source: |
   resp = client.exists(
     index="my-index-000001",
     id="0",
   )
-  print(resp)
+  print(resp)

specification/_global/exists/examples/xCodeSamples/DocumentExistsRubyExample1.yaml

@@ -1,8 +1,8 @@
 - lang: Ruby
-  # label: 
+  # label:
   source: |
     response = client.exists(
       index: 'my-index-000001',
       id: 0
     )
-    puts response
+    puts response