fix unsafe bb_perror_msg(filename) calls

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/coreutils/stat.c b/coreutils/stat.c
index 3fb212f..e38c8f6 100644
--- a/coreutils/stat.c
+++ b/coreutils/stat.c
@@ -442,7 +442,7 @@
 		     : getfilecon(filename, &scontext)
 		    ) < 0
 		) {
-			bb_perror_msg(filename);
+			bb_simple_perror_msg(filename);
 			return 0;
 		}
 	}
@@ -555,7 +555,7 @@
 		     : getfilecon(filename, &scontext)
 		    ) < 0
 		) {
-			bb_perror_msg(filename);
+			bb_simple_perror_msg(filename);
 			return 0;
 		}
 	}