SecurityPkg: Improve formatting of msg when GetVariable fails

Improve the formatting of the error message when GetVariable
fails: start the message with an upper-case character, and close the
quotes around the variable name.

Signed-off-by: Rebecca Cran <rebecca@bsdio.com>

SecurityPkg/Library/SecureBootVariableProvisionLib/SecureBootVariableProvisionLib.c

@@ -162,7 +162,7 @@ EnrollFromDefault (
   DataSize = 0;
   Status   = GetVariable2 (DefaultName, &gEfiGlobalVariableGuid, &Data, &DataSize);
   if (EFI_ERROR (Status)) {
-    DEBUG ((DEBUG_ERROR, "error: GetVariable (\"%s): %r\n", DefaultName, Status));
+    DEBUG ((DEBUG_ERROR, "Error: GetVariable (\"%s\"): %r\n", DefaultName, Status));
     return Status;
   }