patch 8.1.1632: build with EXITFREE but without +arabic fails
Problem: Build with EXITFREE but without +arabic fails.
Solution: Rename the function and adjust #ifdefs. (closes #4613)
diff --git a/src/proto/ex_getln.pro b/src/proto/ex_getln.pro
index 8095eff..5d51370 100644
--- a/src/proto/ex_getln.pro
+++ b/src/proto/ex_getln.pro
@@ -12,7 +12,7 @@
int cmdline_overstrike(void);
int cmdline_at_end(void);
colnr_T cmdline_getvcol_cursor(void);
-void free_cmdline_buf(void);
+void free_arshape_buf(void);
void putcmdline(int c, int shift);
void unputcmdline(void);
int put_on_cmdline(char_u *str, int len, int redraw);