[driver] Address missed feedback from https://reviews.llvm.org/D158476

I missed this before I committed.

Author: smeenai

clang/docs/ReleaseNotes.rst

@@ -346,7 +346,7 @@ Android Support
 
 - Android target triples are usually suffixed with a version. Clang searches for
   target-specific runtime and standard libraries in directories named after the
-  target (e.g. if you're building with ``-target aarch64-none-linux-android21``,
+  target (e.g. if you're building with ``--target=aarch64-none-linux-android21``,
   Clang will look for ``lib/aarch64-none-linux-android21`` under its resource
   directory to find runtime libraries). If an exact match isn't found, Clang
   would previously fall back to a directory without any version (which would be

clang/test/Driver/android-unversioned-fallback-warning.cpp

@@ -11,23 +11,23 @@
 // RUN: mkdir -p %t/resource/lib/aarch64-none-linux-android23
 
 // Using an unversioned directory for an unversioned triple isn't a warning.
-// RUN: %clang -target aarch64-none-linux-android -ccc-install-dir %t/bin \
+// RUN: %clang --target=aarch64-none-linux-android -ccc-install-dir %t/bin \
 // RUN:     -resource-dir %t/resource -### -c %s 2>&1 | \
 // RUN:   FileCheck --check-prefix=NO-WARNING %s
 // NO-WARNING-NOT: Using unversioned Android target directory
 
-// RUN: %clang -target aarch64-none-linux-android21 -ccc-install-dir %t/bin \
+// RUN: %clang --target=aarch64-none-linux-android21 -ccc-install-dir %t/bin \
 // RUN:     -resource-dir %t/resource -### -c %s 2>&1 | \
 // RUN:   FileCheck --check-prefix=ANDROID21 -DDIR=%t -DSEP=%{fs-sep} %s
 // ANDROID21-DAG: Using unversioned Android target directory [[DIR]]/bin[[SEP]]..[[SEP]]include[[SEP]]aarch64-none-linux-android
 // ANDROID21-DAG: Using unversioned Android target directory [[DIR]]/bin[[SEP]]..[[SEP]]lib[[SEP]]aarch64-none-linux-android
 // ANDROID21-DAG: Using unversioned Android target directory [[DIR]]/resource[[SEP]]lib[[SEP]]aarch64-none-linux-android
 
 // 23 or newer should use the versioned directory
-// RUN: %clang -target aarch64-none-linux-android23 -ccc-install-dir %t/bin \
+// RUN: %clang --target=aarch64-none-linux-android23 -ccc-install-dir %t/bin \
 // RUN:     -resource-dir %t/resource -### -c %s 2>&1 | \
 // RUN:   FileCheck --check-prefix=NO-WARNING %s
 
-// RUN: %clang -target aarch64-none-linux-android28 -ccc-install-dir %t/bin \
+// RUN: %clang --target=aarch64-none-linux-android28 -ccc-install-dir %t/bin \
 // RUN:     -resource-dir %t/resource -### -c %s 2>&1 | \
 // RUN:   FileCheck --check-prefix=NO-WARNING %s