PackageDexOptimizer: fix typo in log message.

'oatDir' is the only token that has a space around the '='. None of the
other tokens in the log message do. Make the log message consistent so
that grepping is easier -- and the log message looks better.

Before:
PackageManager.DexOptimizer: Running dexopt (dex2oat) on:
/system/priv-app/Telecom/Telecom.apk pkg=com.android.server.telecom
isa=arm64 vmSafeMode=false debuggable=false
target-filter=interpret-only oatDir = null sharedLibraries=null

After:
PackageManager.DexOptimizer: Running dexopt (dex2oat) on:
/system/priv-app/Telecom/Telecom.apk pkg=com.android.server.telecom
isa=arm64 vmSafeMode=false debuggable=false
target-filter=interpret-only oatDir=null sharedLibraries=null

Bug: None
Test: Build, flash, grep for log message.
Change-Id: I84162ec3535e3f83a60a62d40cbaf8e74d2051c6

services/core/java/com/android/server/pm/PackageDexOptimizer.java

@@ -251,7 +251,7 @@ class PackageDexOptimizer {
                 Log.i(TAG, "Running dexopt (" + dexoptType + ") on: " + path + " pkg="
                         + pkg.applicationInfo.packageName + " isa=" + dexCodeInstructionSet
                         + " vmSafeMode=" + vmSafeMode + " debuggable=" + debuggable
-                        + " target-filter=" + targetCompilerFilter + " oatDir = " + oatDir
+                        + " target-filter=" + targetCompilerFilter + " oatDir=" + oatDir
                         + " sharedLibraries=" + sharedLibrariesPath);
                 // Profile guide compiled oat files should not be public.
                 final boolean isPublic = !pkg.isForwardLocked() && !isProfileGuidedFilter;