Use the correct hash for this

src/command.c

@@ -1455,7 +1455,7 @@ static UINT32 xxHashString32(const char *name)
 #define NAME      cvar_map_t
 #define KEY_TY    const char *
 #define VAL_TY    consvar_t *
-#define HASH_FN   xxHashString32
+#define HASH_FN   FNV1a_HashLowercaseString
 #define CMPR_FN   vt_cmpr_casestring
 #include "verstable.h"
 

src/m_misc.cpp

@@ -2557,6 +2557,20 @@ UINT32 FNV1a_QuickCaseHash(const char *message, size_t size)
 	return hash;
 }
 
+UINT32 FNV1a_HashLowercaseString(const char *message)
+{
+	UINT32 hash = FNV1A_OFFSET_BASIS;
+
+	while (*message)
+	{
+		hash ^= tolower(*message);
+		hash *= FNV1A_PRIME;
+		message++;
+	}
+
+	return hash;
+}
+
 // Returns true if the string is empty.
 boolean M_IsStringEmpty(const char *s)
 {

src/m_misc.h

@@ -126,6 +126,8 @@ FUNCMATH UINT8 M_CountBits(UINT32 num, UINT8 size);
 // Hashes some message using FNV-1a
 UINT32 FNV1a_QuickCaseHash(const char *message, size_t size);
 
+UINT32 FNV1a_HashLowercaseString(const char *message);
+
 boolean M_IsStringEmpty(const char *s);
 
 int M_RoundUp(double number);