Sanity check the values of TRUE and FALSE.

core/src/fpdfdoc/doc_vt.cpp

Index: core/src/fpdfdoc/doc_vt.cpp
diff --git a/core/src/fpdfdoc/doc_vt.cpp b/core/src/fpdfdoc/doc_vt.cpp
index 396a7d6b7167fde88a15e198a00f70a835a6d46e..fe5680ff9bcbe4cc862f5b4c88a9b55c9c344da0 100644
--- a/core/src/fpdfdoc/doc_vt.cpp
+++ b/core/src/fpdfdoc/doc_vt.cpp
@@ -430,7 +430,7 @@ static FX_BOOL IsLatin(FX_WORD word) {
   return FALSE;
 }
 static FX_BOOL IsDigit(FX_DWORD word) {
-  return (word >= 0x0030 && word <= 0x0039) ? TRUE : FALSE;
+  return word >= 0x0030 && word <= 0x0039;
 }
 static FX_BOOL IsCJK(FX_DWORD word) {
   if ((word >= 0x1100 && word <= 0x11FF) ||
@@ -542,7 +542,7 @@ static FX_BOOL IsPrefixSymbol(FX_WORD word) {
   return FALSE;
 }
 static FX_BOOL IsSpace(FX_WORD word) {
-  return (word == 0x0020 || word == 0x3000) ? TRUE : FALSE;
+  return word == 0x0020 || word == 0x3000;
 }
 static FX_BOOL NeedDivision(FX_WORD prevWord, FX_WORD curWord) {
   if ((IsLatin(prevWord) || IsDigit(prevWord)) &&