Function: Strchr
Section: conversions
C-Name: Strchr
Prototype: G
Help: Strchr(x): converts x to a string, translating each integer into a
 character.
Doc:
 converts $x$ to a string, translating each integer
 into a character.
 \bprog
 ? Strchr(97)
 %1 = "a"
 ? Vecsmall("hello world")
 %2 = Vecsmall([104, 101, 108, 108, 111, 32, 119, 111, 114, 108, 100])
 ? Strchr(%)
 %3 = "hello world"
 @eprog
