Remove printOps from default test running

Summary:
I agreed with Nick Reid this was a bit too much, and the fact Github actions prints it all makes looking at breaks on Github mightily annoying. (vs. Meta infra not showing prints unless a test fails)

An alternative is changing the code so the ops are extractable, but I went with time saving since I don't think we have many bugs needing this information right now.

Reviewed By: cgrushko

Differential Revision: D35611026

fbshipit-source-id: 17eb2a029f562dabe2caf573862f24ed01efc897

Author: strulovich

core/src/test/java/com/facebook/ktfmt/testutil/KtfmtTruth.kt

@@ -74,12 +74,11 @@ fun assertThatFormatting(code: String): FormattedCodeSubject {
 
 class FormattedCodeSubject(metadata: FailureMetadata, private val code: String) :
     Subject(metadata, code) {
-  private var options: FormattingOptions =
-      FormattingOptions(debuggingPrintOpsAfterFormatting = true)
+  private var options: FormattingOptions = FormattingOptions()
   private var allowTrailingWhitespace = false
 
   fun withOptions(options: FormattingOptions): FormattedCodeSubject {
-    this.options = options.copy(debuggingPrintOpsAfterFormatting = true)
+    this.options = options
     return this
   }
 
@@ -109,6 +108,9 @@ class FormattedCodeSubject(metadata: FailureMetadata, private val code: String)
         println("#".repeat(20))
         println(expectedFormatting)
         println("#".repeat(20))
+        println(
+            "Need more information about the break operations?" +
+                "Run test with assertion with \"FormattingOptions(debuggingPrintOpsAfterFormatting = true)\"")
       }
     } catch (e: Error) {
       reportError(code)