Add test for unsupported short target triple flag

Signed-off-by: hi-rustin <[email protected]>

Author: 0xPoe

tests/testsuite/build.rs

@@ -4239,6 +4239,28 @@ fn cargo_build_empty_target() {
         .run();
 }
 
+#[cargo_test]
+fn cargo_build_with_unsupported_short_target_flag() {
+    let p = project()
+        .file("Cargo.toml", &basic_bin_manifest("foo"))
+        .file("src/main.rs", "fn main() {}")
+        .build();
+
+    p.cargo("build -t")
+        .arg("")
+        .with_stderr(
+            "\
+error: unexpected argument '-t' found
+
+Usage: cargo[EXE] build [OPTIONS]
+
+For more information, try '--help'.
+",
+        )
+        .with_status(1)
+        .run();
+}
+
 #[cargo_test]
 fn build_all_workspace() {
     let p = project()