remove undefined behavior sanitizer warning
diff --git a/tests/tests-c-compiler/check-src/check-70.c b/tests/tests-c-compiler/check-src/check-70.c
index 6c10f09..6915163 100644
--- a/tests/tests-c-compiler/check-src/check-70.c
+++ b/tests/tests-c-compiler/check-src/check-70.c
@@ -143,8 +143,7 @@
if(how == AS_DER) {
assert(fbuf_offset == (ssize_t)size);
} else {
- assert(fbuf_offset - size < 2
- || (fbuf_offset + 1 /* "\n" */ == (ssize_t)size
+ assert((fbuf_offset + 1 /* "\n" */ == (ssize_t)size
&& fbuf[size - 1] == '\n')
|| (fbuf_offset + 2 /* "\r\n" */ == (ssize_t)size
&& fbuf[size - 2] == '\r'