chore: cite lines that carry something

Four refs pointed at blank lines or a closing brace: get_bios,
pif_bootrom_hle_execute, the key mapping block and the neocd system
subdirectory constant are one line off in each case.

emulators/neocd.yml

@@ -15,7 +15,7 @@ systems:
 notes: |
   Complete rewrite of NeoCD in C++11. Scans {system_dir}/neocd/ for any .rom
   or .bin file, also inside .zip archives (src/libretro_bios.cpp:70-106,
-  src/path.cpp:6 NEOCD_SYSTEM_SUBDIR = "neocd").
+  src/path.cpp:7 NEOCD_SYSTEM_SUBDIR = "neocd").
 
   BIOS identified by binary pattern matching at fixed ROM addresses, not by
   filename (src/bios.cpp:167-206). Files are auto byte-swapped if needed

emulators/nxengine.yml

@@ -33,7 +33,7 @@ notes: |
   The font is compiled-in (bitmap_font.h). The upstream standalone version
   uses font.ttf via SDL_ttf.
 
-  Valid content extension: .exe (nxengine/libretro/libretro.cpp:128).
+  Valid content extension: .exe (nxengine/libretro/libretro.cpp:126).
 
 files:
   - name: "Doukutsu.exe"

emulators/parallel_n64.yml

@@ -21,7 +21,7 @@ files:
 notes:
   hle_available: true
   hle_note: >
-    PIF boot ROM is fully HLE'd (mupen64plus-core/src/device/pif/bootrom_hle.c:51). CIC
+    PIF boot ROM is fully HLE'd (mupen64plus-core/src/device/pif/bootrom_hle.c:48). CIC
     challenge/response handled in software (n64_cic_nus_6105.c). No BIOS
     files needed for standard cartridge games.
   dd_note: >

emulators/picodrive.yml

@@ -37,7 +37,7 @@ notes: |
 
   32X BIOS files (m68k, master SH2, slave SH2) are fully optional. The engine
   has built-in HLE that generates replacement code at startup when the BIOS
-  pointers are NULL (pico/32x/memory.c:2199 get_bios(), pico/32x/32x.c:172).
+  pointers are NULL (pico/32x/memory.c:2200 get_bios(), pico/32x/32x.c:172).
   No current frontend (libretro or standalone) loads these files; the standalone
   loading code is disabled (#if 0 in platform/common/emu.c:1529).