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symchar: move the string inside strchr call

--- a/read.h

+++ b/read.h

@@ -9,8 +9,7 @@

 // exceptions are '.', which is an ordinary symbol character

 // unless it's the only character in the symbol, and '#', which is

 // an ordinary symbol character unless it's the first character.

-#define symchar(c) (!strchr(symspecials, (c)))

-static char symspecials[] = "()[]'\";`,\\| \a\b\f\n\r\t\v";

+#define symchar(c) (!strchr("()[]'\";`,\\| \a\b\f\n\r\t\v", (c)))

 #endif

-- 

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