patch 9.0.0445: when opening/closing window text moves up/down
Problem: When opening/closing window text moves up/down.
Solution: Add the 'splitscroll' option. When off text will keep its
position as much as possible.
diff --git a/src/option.h b/src/option.h
index ab34e82..97b7a6c 100644
--- a/src/option.h
+++ b/src/option.h
@@ -924,6 +924,7 @@
EXTERN char_u *p_sps; // 'spellsuggest'
#endif
EXTERN int p_spr; // 'splitright'
+EXTERN int p_spsc; // 'splitscroll'
EXTERN int p_sol; // 'startofline'
EXTERN char_u *p_su; // 'suffixes'
EXTERN char_u *p_sws; // 'swapsync'