Lazily create string for precondition error message.

PiperOrigin-RevId: 746439058
Change-Id: I185277a9274b4deef479505a5d0efe245dc8d2a2

src/main/java/com/google/devtools/build/lib/actions/ActionExecutionContext.java

diff --git a/src/main/java/com/google/devtools/build/lib/actions/ActionExecutionContext.java b/src/main/java/com/google/devtools/build/lib/actions/ActionExecutionContext.java
index 22b8ffe..6e1c9c8 100644
--- a/src/main/java/com/google/devtools/build/lib/actions/ActionExecutionContext.java
+++ b/src/main/java/com/google/devtools/build/lib/actions/ActionExecutionContext.java
@@ -435,9 +435,9 @@
   public void setRichArtifactData(RichArtifactData richArtifactData) {
     Preconditions.checkState(
         this.richArtifactData == null,
-        String.format(
-            "rich artifact data was set twice, old=%s, new=%s",
-            this.richArtifactData, richArtifactData));
+        "rich artifact data was set twice, old=%s, new=%s",
+        this.richArtifactData,
+        richArtifactData);
     this.richArtifactData = richArtifactData;
   }