ICU-21349 fix comment for CLDR identifiers

See #1481
diff --git a/icu4c/source/i18n/unicode/measunit.h b/icu4c/source/i18n/unicode/measunit.h
index b9f732a..8db6527 100644
--- a/icu4c/source/i18n/unicode/measunit.h
+++ b/icu4c/source/i18n/unicode/measunit.h
@@ -335,7 +335,7 @@
 
 #ifndef U_HIDE_DRAFT_API
     /**
-     * Get the CLDR Unit Identifier for this MeasureUnit, as defined in UTS 35.
+     * Get CLDR Unit Identifier for this MeasureUnit, as defined in UTS 35.
      *
      * @return The string form of this unit, owned by this MeasureUnit.
      * @draft ICU 67
diff --git a/icu4j/main/classes/core/src/com/ibm/icu/util/MeasureUnit.java b/icu4j/main/classes/core/src/com/ibm/icu/util/MeasureUnit.java
index 40c0770..77adad4 100644
--- a/icu4j/main/classes/core/src/com/ibm/icu/util/MeasureUnit.java
+++ b/icu4j/main/classes/core/src/com/ibm/icu/util/MeasureUnit.java
@@ -342,7 +342,7 @@
      * MeasureUnit example = MeasureUnit::forIdentifier("furlong-per-nanosecond")
      * </pre>
      *
-     * @param identifier The CLDR Sequence Unit Identifier
+     * @param identifier CLDR Unit Identifier
      * @throws IllegalArgumentException if the identifier is invalid.
      * @draft ICU 68
      * @provisional This API might change or be removed in a future release.
@@ -399,7 +399,7 @@
     }
 
     /**
-     * Gets the CLDR Unit Identifier for this MeasureUnit, as defined in UTS 35.
+     * Get CLDR Unit Identifier for this MeasureUnit, as defined in UTS 35.
      *
      * @return The string form of this unit.
      * @draft ICU 68