Disambiguate line numbers in argonautica.xml.

These two lines are marked with <del></del>. Perseus 5.0 names the
deleted lines "382a" and "383a".
https://github.com/PerseusDL/canonical-greekLit/blob/2d5ba46c2e4b5a0c884548c431503ef7d63d14ce/data/tlg0001/tlg001/tlg0001.tlg001.perseus-grc2.xml#L2044-L2051

#77

corpus/argonautica.xml

@@ -1871,8 +1871,8 @@
                 <lb />th=| d' e)pi\ *mossu/noikoi o(mou/rioi u(lh/essan
                 <lb rend="displayNum" n="380" />e(cei/hs h)/peiron, u(pwrei/as te ne/montai,
                 <lb />dourate/ois pu/rgoisin e)n oi)ki/a tekth/nantes
-                <lb /><del status="unremarkable">ka/lina kai\ pu/rgous eu)phge/as, ou(\s kale/ousin
-                <lb />mo/ssunas: kai\ d' au)toi\ e)pw/numoi e)/nqen e)/asin.</del>
+                <lb rend="displayNum" n="382a" /><del status="unremarkable">ka/lina kai\ pu/rgous eu)phge/as, ou(\s kale/ousin
+                <lb rend="displayNum" n="382b" />mo/ssunas: kai\ d' au)toi\ e)pw/numoi e)/nqen e)/asin.</del>
                 <lb rend="displayNum" n="382" />tou\s parameibo/menoi lissh=| e)pike/lsete nh/sw|,
                 <lb />mh/ti pantoi/h| me/g' a)naide/as e)cela/santes
                 <lb />oi)wnou/s, oi(\ dh=qen a)peire/sioi e)fe/pousin