DEV: flags: fix "siet" shortcut name

It "si->et" was changed to "strm->et" by commit 09b3c5559 ("DEV: flags:
No longer dump SI flags") but this shortcut was missed.
diff --git a/dev/flags/flags.c b/dev/flags/flags.c
index b53df6c..5f00c6f 100644
--- a/dev/flags/flags.c
+++ b/dev/flags/flags.c
@@ -21,7 +21,7 @@
 
 // command line names, must be in exact same order as the SHOW_AS_* flags above
 // so that show_as_words[i] matches flag 1U<<i.
-const char *show_as_words[] = { "ana", "chn", "conn", "sc", "siet", "strm", "task", "txn", "endp", };
+const char *show_as_words[] = { "ana", "chn", "conn", "sc", "stet", "strm", "task", "txn", "endp", };
 
 #define SHOW_FLAG(f,n)					\
 	do {				 		\