Ran prePR to format code.

Author: matthughes

core/src/main/scala/cats/syntax/foldable.scala

@@ -78,7 +78,7 @@ final class FoldableOps[F[_], A](private val fa: F[A]) extends AnyVal {
 
   /**
    * Make a string using `Show`, prefix, delimiter, and suffix.
-   * 
+   *
    * Named as `mkString_` to avoid conflict.
    *
    * Example:
@@ -104,10 +104,10 @@ final class FoldableOps[F[_], A](private val fa: F[A]) extends AnyVal {
         b.toString.dropRight(delim.length)
     } + suffix
   }
-  
+
   /**
    * Make a string using `Show` and delimiter.
-   * 
+   *
    * Named as `mkString_` to avoid conflict.
    *
    * Example:
@@ -119,10 +119,10 @@ final class FoldableOps[F[_], A](private val fa: F[A]) extends AnyVal {
    * res0: String = 1,2,3
    * scala> val el: List[Int] = List()
    * scala> el.mkString_(",")
-   * res1: String = 
+   * res1: String =
    * }}}
    */
-  def mkString_(delim: String)(implicit A: Show[A], F: Foldable[F]): String = 
+  def mkString_(delim: String)(implicit A: Show[A], F: Foldable[F]): String =
     mkString_("", delim, "")
 
   /**