make functions fall more inline with the standard structure of raylib functions

src/rtext.c

@@ -1345,7 +1345,12 @@ Rectangle GetGlyphAtlasRec(Font font, int codepoint)
 unsigned int TextLength(const char *text)
 {
     // use strlen since it uses vector operations
-    return text ? strlen(text) : 0;
+    bool result = false;
+
+    if (text && strlen(text))
+        result = true;
+
+    return result;
 }
 
 // Formatting of text with variables to 'embed'
@@ -1424,7 +1429,12 @@ int TextCopy(char *dst, const char *src)
 // REQUIRES: strcmp()
 bool TextIsEqual(const char *text1, const char *text2)
 {
-    return text1 && text2 ? !strcmp(text1, text2) : 0;
+    bool result = false;
+
+    if (text1 && text2 && !strcmp(text1, text2))
+        result = true;
+
+    return result;
 }
 
 // Get a piece of a text string
@@ -1432,16 +1442,21 @@ const char *TextSubtext(const char *text, int position, int length)
 {
     if (!length || !text)
         return "";
+
     int textLength = TextLength(text);
+
     if (position >= textLength)
     {
         position = textLength - 1;
         length = 0;
     }
+
     if (length > textLength) length = textLength;
+
     char *buffer = malloc(length + 1);
     memcpy(buffer, text + position, length);
     buffer[length] = '\0';
+
     return buffer;
 }