reorder demos so whiteout doesn't disrupt uniblock

doc/man/man1/notcurses-demo.1.md

@@ -74,7 +74,7 @@ terminal, and will refuse to run in anything smaller than 80x24.
 **-V**|**--version**: Print the program name and version, and exit with success.
 
 ***demospec***: Select which demos to run, and what order to run them in. The
-default is **ixetnchdmbkygarwuvlsfjqzo**. See above for a list of demos.
+default is **ixetunchdmbkywgarvlsfjqzo**. See above for a list of demos.
 
 Default margins are all 0, and thus the full screen will be rendered. Using
 **-m**, margins can be supplied. Provide a single number to set all four margins

src/demo/demo.c

@@ -21,7 +21,7 @@ static int democount;
 static demoresult* results;
 static char *datadir = NOTCURSES_SHARE;
 
-static const char DEFAULT_DEMO[] = "ixetnchdmbkygarwuvlsfjqzo";
+static const char DEFAULT_DEMO[] = "ixetunchdmbkywgarvlsfjqzo";
 
 atomic_bool interrupted = ATOMIC_VAR_INIT(false);
 // checked following demos, whether aborted, failed, or otherwise