Replace errant tabs with spaces in causes.h.

(closes issue ASTERISK-20826)
Reported by: snuffy
Patches:
	notabs.dif uploaded by snuffy (license 5024)
........

Merged revisions 378733 from http://svn.asterisk.org/svn/asterisk/branches/1.8
........

Merged revisions 378734 from http://svn.asterisk.org/svn/asterisk/branches/11


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@378735 65c4cc65-6c06-0410-ace0-fbb531ad65f3

include/asterisk/causes.h

@@ -72,7 +72,7 @@ specification:
 	- AST_CAUSE_CHAN_NOT_IMPLEMENTED            66
 	- AST_CAUSE_FACILITY_NOT_IMPLEMENTED        69
 	- AST_CAUSE_INVALID_CALL_REFERENCE          81
-	- AST_CAUSE_INCOMPATIBLE_DESTINATION		88
+	- AST_CAUSE_INCOMPATIBLE_DESTINATION        88
 	- AST_CAUSE_INVALID_MSG_UNSPECIFIED         95
 	- AST_CAUSE_MANDATORY_IE_MISSING            96
 	- AST_CAUSE_MESSAGE_TYPE_NONEXIST           97
@@ -111,8 +111,8 @@ For more information:
 #define AST_CAUSE_NUMBER_CHANGED                22
 #define AST_CAUSE_REDIRECTED_TO_NEW_DESTINATION 23
 #define AST_CAUSE_ANSWERED_ELSEWHERE            26
-#define AST_CAUSE_DESTINATION_OUT_OF_ORDER		27
-#define AST_CAUSE_INVALID_NUMBER_FORMAT			28
+#define AST_CAUSE_DESTINATION_OUT_OF_ORDER      27
+#define AST_CAUSE_INVALID_NUMBER_FORMAT         28
 #define AST_CAUSE_FACILITY_REJECTED             29
 #define AST_CAUSE_RESPONSE_TO_STATUS_ENQUIRY    30
 #define AST_CAUSE_NORMAL_UNSPECIFIED            31
@@ -133,8 +133,8 @@ For more information:
 #define AST_CAUSE_INVALID_CALL_REFERENCE        81
 #define AST_CAUSE_INCOMPATIBLE_DESTINATION      88
 #define AST_CAUSE_INVALID_MSG_UNSPECIFIED       95
-#define AST_CAUSE_MANDATORY_IE_MISSING			96
-#define AST_CAUSE_MESSAGE_TYPE_NONEXIST			97
+#define AST_CAUSE_MANDATORY_IE_MISSING          96
+#define AST_CAUSE_MESSAGE_TYPE_NONEXIST         97
 #define AST_CAUSE_WRONG_MESSAGE                 98
 #define AST_CAUSE_IE_NONEXIST                   99
 #define AST_CAUSE_INVALID_IE_CONTENTS          100