Update error text

Text was updated to be slightly more readable, but, wound up breaking
the tests. Reverting the word change.

Change-Id: I299245fc05f15ff6f7979c4c0365fe885b3c2e15
Fixes: 69056838
Test: cts-tradefed run commandAndExit cts-dev -m CtsAppSecurityHostTestCases -t android.appsecurity.cts.PkgInstallSignatureVerificationTest#testCorrectCertUsedFromPkcs7SignedDataCertsSet
Test: cts-tradefed run commandAndExit cts-dev -m CtsAppSecurityHostTestCases -t android.appsecurity.cts.PkgInstallSignatureVerificationTest#testV1SchemeSignatureCertNotReencoded
Test: cts-tradefed run commandAndExit cts-dev -m CtsAppSecurityHostTestCases -t android.appsecurity.cts.PkgInstallSignatureVerificationTest#testV2SchemeSignatureCertNotReencoded
diff --git a/services/core/java/com/android/server/pm/PackageManagerServiceUtils.java b/services/core/java/com/android/server/pm/PackageManagerServiceUtils.java
index fb6278a..38131e1 100644
--- a/services/core/java/com/android/server/pm/PackageManagerServiceUtils.java
+++ b/services/core/java/com/android/server/pm/PackageManagerServiceUtils.java
@@ -571,7 +571,7 @@
             if (!match) {
                 throw new PackageManagerException(INSTALL_FAILED_UPDATE_INCOMPATIBLE,
                         "Package " + packageName +
-                        " signatures don't match previously installed version; ignoring!");
+                        " signatures do not match previously installed version; ignoring!");
             }
         }
         // Check for shared user signatures