Rollup merge of #70409 - mathstuf:gitignore-target-symlink, r=Mark-Simulacrum

gitignore: allow target to be a symlink

Following rust-lang/cargo#4944.

Author: Dylan-DPC

.gitignore

@@ -35,7 +35,7 @@ __pycache__/
 /obj/
 /rustllvm/
 /unicode-downloads
-/target/
+/target
 # Generated by compiletest for incremental:
 /tmp/
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