Fix typos in comments in ART test configurations.

Test: n/a (comment-only change)
Change-Id: Ic3babd5b6d4018f8d9dc88f84d061e69bc4e563d
diff --git a/test/art-gtests-target-chroot.xml b/test/art-gtests-target-chroot.xml
index 62edd9e..f274ff1 100644
--- a/test/art-gtests-target-chroot.xml
+++ b/test/art-gtests-target-chroot.xml
@@ -28,7 +28,7 @@
     </test>
 
     <!-- When this test is run in a Mainline context (e.g. with `mts-tradefed`), only enable it if
-         one the Mainline modules below is present on the device used for testing. -->
+         one of the Mainline modules below is present on the device used for testing. -->
     <object type="module_controller" class="com.android.tradefed.testtype.suite.module.MainlineTestModuleController">
         <!-- ART Mainline Module (internal version). -->
         <option name="mainline-module-package-name" value="com.google.android.art" />
diff --git a/test/art-gtests-target-install-apex.xml b/test/art-gtests-target-install-apex.xml
index 3ed994f..39c46fb 100644
--- a/test/art-gtests-target-install-apex.xml
+++ b/test/art-gtests-target-install-apex.xml
@@ -29,7 +29,7 @@
     </test>
 
     <!-- When this test is run in a Mainline context (e.g. with `mts-tradefed`), only enable it if
-         one the Mainline modules below is present on the device used for testing. -->
+         one of the Mainline modules below is present on the device used for testing. -->
     <object type="module_controller" class="com.android.tradefed.testtype.suite.module.MainlineTestModuleController">
         <!-- ART Mainline Module (internal version). -->
         <option name="mainline-module-package-name" value="com.google.android.art" />
diff --git a/test/art-run-test-target-no-test-suite-tag-template.xml b/test/art-run-test-target-no-test-suite-tag-template.xml
index a787246..7e7b592 100644
--- a/test/art-run-test-target-no-test-suite-tag-template.xml
+++ b/test/art-run-test-target-no-test-suite-tag-template.xml
@@ -28,7 +28,7 @@
     </test>
 
     <!-- When this test is run in a Mainline context (e.g. with `mts-tradefed`), only enable it if
-         one the Mainline modules below is present on the device used for testing. -->
+         one of the Mainline modules below is present on the device used for testing. -->
     <object type="module_controller" class="com.android.tradefed.testtype.suite.module.MainlineTestModuleController">
         <!-- ART Mainline Module (internal version). -->
         <option name="mainline-module-package-name" value="com.google.android.art" />
diff --git a/test/art-run-test-target-template.xml b/test/art-run-test-target-template.xml
index cb13a58..4084afa 100644
--- a/test/art-run-test-target-template.xml
+++ b/test/art-run-test-target-template.xml
@@ -31,7 +31,7 @@
     </test>
 
     <!-- When this test is run in a Mainline context (e.g. with `mts-tradefed`), only enable it if
-         one the Mainline modules below is present on the device used for testing. -->
+         one of the Mainline modules below is present on the device used for testing. -->
     <object type="module_controller" class="com.android.tradefed.testtype.suite.module.MainlineTestModuleController">
         <!-- ART Mainline Module (internal version). -->
         <option name="mainline-module-package-name" value="com.google.android.art" />