lorelei_sebasto_cha.sg: fix file name (case)

books/volume-5.sb

@@ -83,7 +83,7 @@
     "hubert-felix_thiefaine/la_fin_du_saint_empire_romain_germanique.sg",
     "hubert-felix_thiefaine/la_mome_kaleidoscope.sg",
     "hubert-felix_thiefaine/le_chant_du_fou.sg",
-    "hubert-felix_thiefaine/lorelei_Sebasto_Cha.sg",
+    "hubert-felix_thiefaine/lorelei_sebasto_cha.sg",
     "hubert-felix_thiefaine/maison_borniol.sg",
     "hubert-felix_thiefaine/sweet_amanite_phalloide_queen.sg",
     "iggy_pop/in_the_death_car.sg",

patadata.sbc

@@ -283,7 +283,7 @@
     "hubert-felix_thiefaine/la_fin_du_saint_empire_romain_germanique.sg", 
     "hubert-felix_thiefaine/la_mome_kaleidoscope.sg", 
     "hubert-felix_thiefaine/le_chant_du_fou.sg", 
-    "hubert-felix_thiefaine/lorelei_Sebasto_Cha.sg", 
+    "hubert-felix_thiefaine/lorelei_sebasto_cha.sg", 
     "hubert-felix_thiefaine/maison_borniol.sg", 
     "hubert-felix_thiefaine/scorbut.sg", 
     "hubert-felix_thiefaine/sentiments_numeriques_revisites.sg",