VBoot Reference: Output debug information using debug() instead of fprintf().

src/platform/vboot_reference/tests/rollback_index_mock.c

Index: src/platform/vboot_reference/tests/rollback_index_mock.c
diff --git a/src/platform/vboot_reference/tests/rollback_index_mock.c b/src/platform/vboot_reference/tests/rollback_index_mock.c
index 37dde48c896a97b99db072b8a69e0e5fbbee5f55..9d67e1fbb283496e7d84806142a912c7ab2fa256 100644
--- a/src/platform/vboot_reference/tests/rollback_index_mock.c
+++ b/src/platform/vboot_reference/tests/rollback_index_mock.c
@@ -17,7 +17,7 @@ uint16_t g_kernel_version = 0;
 
 void SetupTPM(void) {
 #ifndef NDEBUG
-  fprintf(stderr, "Rollback Index Library Mock: TPM initialized.\n");
+  debug("Rollback Index Library Mock: TPM initialized.\n");
 #endif
 }
 
@@ -55,13 +55,13 @@ int WriteStoredVersion(int type, uint16_t version) {
       break;
   }
 #ifndef NDEBUG
-  fprintf(stderr, "Rollback Index Library Mock: Stored Version written.\n");
+  debug("Rollback Index Library Mock: Stored Version written.\n");
 #endif
   return 1;
 }
 
 void LockStoredVersion(int type) {
 #ifndef NDEBUG
-  fprintf(stderr, "Rollback Index Library Mock: Version Locked.\n");
+  debug("Rollback Index Library Mock: Version Locked.\n");
 #endif
 }