[Toybox] [PATCH] remove accidental space in format string

[enh]

the ' ' flag makes no sense for %c.

diff --git a/toys/posix/split.c b/toys/posix/split.c
index d9a556b..aabf931 100644
--- a/toys/posix/split.c
+++ b/toys/posix/split.c
@@ -100,7 +100,7 @@ void split_main(void)
   if (!TT.bytes && !TT.lines) TT.lines = 1000;

   // Allocate template for output filenames
-  TT.outfile = xmprintf("%s% *c", (toys.optc == 2) ? toys.optargs[1] : "x",
+  TT.outfile = xmprintf("%s%*c", (toys.optc == 2) ? toys.optargs[1] : "x",
     (int)TT.suflen, ' ');

   // We only ever use one input, but this handles '-' or no input for us.

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