patch 8.2.2160: various typos

Problem:    Various typos.
Solution:   Fix spelling mistakes. (closes #7494)
diff --git a/src/textprop.c b/src/textprop.c
index bca0d9e..5a18f6c 100644
--- a/src/textprop.c
+++ b/src/textprop.c
@@ -302,7 +302,7 @@
 	if (length < 0)
 	    length = 0;		// zero-width property
 
-	// Allocate the new line with space for the new proprety.
+	// Allocate the new line with space for the new property.
 	newtext = alloc(buf->b_ml.ml_line_len + sizeof(textprop_T));
 	if (newtext == NULL)
 	    return;
@@ -1485,7 +1485,7 @@
 	end = !(prop.tp_flags & TP_FLAG_CONT_NEXT);
 
 	adjust_prop(&prop, 0, -removed, 0); // Remove leading spaces
-	adjust_prop(&prop, -1, col, 0); // Make line start at its final colum
+	adjust_prop(&prop, -1, col, 0); // Make line start at its final column
 
 	if (add_all || end)
 	    mch_memmove(new_props + --(*props_remaining) * sizeof(prop),