PDFBOX-5660: fix typo, as suggested by Valery Bokov; closes #284

git-svn-id: https://svn.apache.org/repos/asf/pdfbox/trunk@1929047 13f79535-47bb-0310-9956-ffa450edef68

Author: THausherr

pdfbox/src/main/java/org/apache/pdfbox/util/Matrix.java

@@ -381,8 +381,8 @@ public Vector transform(Vector vector)
      * 0 y 0
      * 0 0 1
      *
-     * @param x The xscale operator.
-     * @param y The yscale operator.
+     * @param x The x-scale operator.
+     * @param y The y-scale operator.
      * @return A new matrix with just the x/y scaling
      */
     public static Matrix getScaleInstance(float x, float y)
@@ -518,7 +518,7 @@ public float getShearY()
     /**
      * Returns the x-shear element of this matrix.
      * 
-     * @return the x-sheard element of the matrix
+     * @return the x-shear element of the matrix
      */
     public float getShearX()
     {