Don't emit target build into on --quiet

Kinda related to 1261b41,
quiet means quiet and since this isn't using rpmlog() we need to filter
manually.

tools/rpmbuild.c

@@ -549,16 +549,17 @@ static int build(rpmts ts, const char * arg, BTA_t ba, const char * rcfile)
  }
 
  /* parse up the build operators */
-
- fprintf(stderr, _("Building target platforms: %s\n"), targets);
+ if (!quiet)
+ fprintf(stderr, _("Building target platforms: %s\n"), targets);
 
  ba->buildAmount &= ~buildCleanMask;
  for (ARGV_const_t target = build_targets; target && *target; target++) {
  /* Perform clean-up after last target build. */
  if (*(target + 1) == NULL)
  ba->buildAmount |= cleanFlags;
 
- fprintf(stderr, _("Building for target %s\n"), *target);
+ if (!quiet)
+ fprintf(stderr, _("Building for target %s\n"), *target);
 
  /* Read in configuration for target. */
  rpmFreeMacros(NULL);