MINOR: Fix typo in error message in the standard subsystem

Fix a typo in an error message that could be user-visible when running
out of memory in the parse_binary function.

src/standard.c

@@ -2186,7 +2186,7 @@ int parse_binary(const char *source, char **binstr, int *binstrlen, char **err)
 	}
 	else {
 		if (*binstrlen < len) {
-			memprintf(err, "no space avalaible in the buffer. expect %d, provides %d",
+			memprintf(err, "no space available in the buffer. expect %d, provides %d",
 			          len, *binstrlen);
 			return 0;
 		}