SlopController: fix formatting of logged values

While checking b/396858976 I noticed some of these log messages with
strange formatting of the values:

    InputReader: SlopController: dropping event with value .-1.000000
    InputReader: SlopController: dropping event with value .3.000000

It looks like these format strings were intended to specify the
precision after the decimal point, rather than the field width.

Bug: 245989146
Change-Id: I71691d025cc5f03b26e95f96f90ab0a2281ed43b
Test: TreeHugger
Flag: EXEMPT logs only change
diff --git a/services/inputflinger/reader/mapper/SlopController.cpp b/services/inputflinger/reader/mapper/SlopController.cpp
index 9ec02a6..d55df51 100644
--- a/services/inputflinger/reader/mapper/SlopController.cpp
+++ b/services/inputflinger/reader/mapper/SlopController.cpp
@@ -54,13 +54,13 @@
     mCumulativeValue += value;
 
     if (abs(mCumulativeValue) >= mSlopThreshold) {
-        ALOGD("SlopController: did not drop event with value .%3f", value);
+        ALOGD("SlopController: did not drop event with value %.3f", value);
         mHasSlopBeenMet = true;
         // Return the amount of value that exceeds the slop.
         return signOf(value) * (abs(mCumulativeValue) - mSlopThreshold);
     }
 
-    ALOGD("SlopController: dropping event with value .%3f", value);
+    ALOGD("SlopController: dropping event with value %.3f", value);
     return 0;
 }