patch 8.2.0953: spell checking doesn't work for CamelCased words

Problem:    Spell checking doesn't work for CamelCased words.
Solution:   Add the "camel" value in the new option 'spelloptions'.
            (closes #1235)
diff --git a/src/optiondefs.h b/src/optiondefs.h
index 571a3af..f1f1af3 100644
--- a/src/optiondefs.h
+++ b/src/optiondefs.h
@@ -129,6 +129,7 @@
 # define PV_SPC		OPT_BUF(BV_SPC)
 # define PV_SPF		OPT_BUF(BV_SPF)
 # define PV_SPL		OPT_BUF(BV_SPL)
+# define PV_SPO		OPT_BUF(BV_SPO)
 #endif
 #define PV_STS		OPT_BUF(BV_STS)
 #ifdef FEAT_SEARCHPATH
@@ -2398,6 +2399,16 @@
 			    {(char_u *)0L, (char_u *)0L}
 #endif
 			    SCTX_INIT},
+    {"spelloptions", "spo",  P_STRING|P_ALLOCED|P_VI_DEF
+						    |P_ONECOMMA|P_NODUP|P_RBUF,
+#ifdef FEAT_SPELL
+			    (char_u *)&p_spo, PV_SPO,
+			    {(char_u *)"", (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}
+#endif
+			    SCTX_INIT},
     {"spellsuggest", "sps", P_STRING|P_VI_DEF|P_EXPAND|P_SECURE|P_ONECOMMA,
 #ifdef FEAT_SPELL
 			    (char_u *)&p_sps, PV_NONE,