code cleanup: fix -Wnewline-eof

src/libespeak-ng/compiledata.c

 	c2 = c2 >> 16; // sign extend
 
 	return (c1 & 0xff) + c2;
-}
+}

src/libespeak-ng/dictionary.c

 		*add_points = 23;
 	else
 		*failed = 1;
-}
+}

src/libespeak-ng/langopts.c

 
 	fprintf(stderr, "Cannot set %s: language not set, or is invalid.\n", LookupMnemName(keyword_tab, key));
 	return 1;
-}
+}

src/libespeak-ng/phonemelist.c

 			// re-interpret the changed phoneme
 			// But it doesn't obey a second ChangePhoneme()
 			InterpretPhoneme(tr, 0x100, plist3, phdata, worddata);
-}
+}