Fix tests.

Author: m-ou-se

tests/ui/consts/precise-drop-with-promoted.rs

@@ -3,7 +3,7 @@
 // known-bug: #103507
 // failure-status: 101
 // normalize-stderr-test "note: .*\n\n" -> ""
-// normalize-stderr-test "thread 'rustc' panicked.*\n" -> ""
+// normalize-stderr-test "thread 'rustc' panicked.*\n.*\n" -> ""
 // normalize-stderr-test "(error: internal compiler error: [^:]+):\d+:\d+: " -> "$1:LL:CC: "
 // rustc-env:RUST_BACKTRACE=0
 

tests/ui/process/println-with-broken-pipe.run.stderr

@@ -1,2 +1,3 @@
-thread 'main' panicked at 'failed printing to stdout: Broken pipe (os error 32)', library/std/src/io/stdio.rs:LL:CC
+thread 'main' panicked at library/std/src/io/stdio.rs:LL:CC:
+failed printing to stdout: Broken pipe (os error 32)
 note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace