[hackers] [st] Clear screen: Fix edge case || Markus Rinne

[git]

commit 6009e6e25bdff9548f085e9ae562b1ca305d3a0b
Author:     Markus Rinne <markus.ka.ri...@gmail.com>
AuthorDate: Mon Nov 25 13:31:56 2024 +0200
Commit:     Hiltjo Posthuma <hil...@codemadness.org>
CommitDate: Fri Dec 6 13:42:50 2024 +0100

    Clear screen: Fix edge case
    
    With sequence \e[1J, if cursor is on second line, clear the first line.

diff --git a/st.c b/st.c
index 57c6e96..2e3800e 100644
--- a/st.c
+++ b/st.c
@@ -1705,7 +1705,7 @@ csihandle(void)
                        }
                        break;
                case 1: /* above */
-                       if (term.c.y > 1)
+                       if (term.c.y > 0)
                                tclearregion(0, 0, term.col-1, term.c.y-1);
                        tclearregion(0, term.c.y, term.c.x, term.c.y);
                        break;