Merge pull request kstenerud#236 from bamx23/fix-global-vars

Fix static global variables in KSCrashReportFilterAppleFmt

Author: kstenerud

Source/KSCrash/Reporting/Filters/KSCrashReportFilterAppleFmt.m

@@ -103,13 +103,13 @@ @implementation KSCrashReportFilterAppleFmt
 @synthesize reportStyle = _reportStyle;
 
 /** Date formatter for Apple date format in crash reports. */
-NSDateFormatter* g_dateFormatter;
+static NSDateFormatter* g_dateFormatter;
 
 /** Date formatter for RFC3339 date format. */
-NSDateFormatter* g_rfc3339DateFormatter;
+static NSDateFormatter* g_rfc3339DateFormatter;
 
 /** Printing order for registers. */
-NSDictionary* g_registerOrders;
+static NSDictionary* g_registerOrders;
 
 + (void) initialize
 {