[docs] Fix typos in some g_file_* functions
[docs] Fix typos in some g_file_* functions

Reported by Alexander Saprykin in bug
https://bugzilla.gnome.org/show_bug.cgi?id=620947

pstglia/external-bluetooth-glib,tamaskenez/glib,endlessm/glib,mzabaluev/glib,dicer/android_external_glib,djdeath/glib,ieei/glib,johne53/MB3Glib,cosimoc/glib,krichter722/glib,01org/android-bluez-glib,ahmedammar/platform_external_gst_glib,tchakabam/glib,endlessm/glib,zsx/glib,iConsole/Console-OS_external_bluetooth_glib,darren-clark/android_platform_external_bluetooth_glib,Distrotech/glib,bluez-android/glib,cosimoc/glib,johne53/MB3Glib,pstglia/platform-external-bluetooth-glib,cention-sany/glib,pstglia/platform-external-bluetooth-glib,dicer/android_external_glib,ieei/glib,ahmedammar/platform_external_gst_glib,cosimoc/glib,bratsche/glib,tamaskenez/glib,djdeath/glib,mzabaluev/glib,Distrotech/glib,MathieuDuponchelle/glib,cosimoc/glib,justinkb/aosp-bluez.glib,bluez-android/glib,ahmedammar/platform_external_gst_glib,djdeath/glib,iConsole/Console-OS_external_bluetooth_glib,djdeath/glib,cention-sany/glib,zsx/glib,bluez-android/glib,gale320/glib,ieei/glib,endlessm/glib,tchakabam/glib,krichter722/glib,bratsche/glib,antono/glib,ieei/glib,dicer/android_external_glib,bratsche/glib,iConsole/Console-OS_external_bluetooth_glib,cention-sany/glib,tchakabam/glib,johne53/MB3Glib,endlessm/glib,gale320/glib,krichter722/glib,gale320/glib,cention-sany/glib,Distrotech/glib,johne53/MB3Glib,lukasz-skalski/glib,ahmedammar/platform_external_gst_glib,mzabaluev/glib,Distrotech/glib,pstglia/external-bluetooth-glib,zsx/glib,lukasz-skalski/glib,pstglia/platform-external-bluetooth-glib,MathieuDuponchelle/glib,johne53/MB3Glib,darren-clark/android_platform_external_bluetooth_glib,tamaskenez/glib,gale320/glib,cention-sany/glib,cosimoc/glib,antono/glib,krichter722/glib,MathieuDuponchelle/glib,antono/glib,pstglia/external-bluetooth-glib,01org/android-bluez-glib,01org/android-bluez-glib,darren-clark/android_platform_external_bluetooth_glib,tamaskenez/glib,lukasz-skalski/glib,ieei/glib-old-android,dicer/android_external_glib,pstglia/platform-external-bluetooth-glib,endlessm/glib,justinkb/aosp-bluez.glib,lukasz-skalski/glib,justinkb/aosp-bluez.glib,tchakabam/glib,tamaskenez/glib,darren-clark/android_platform_external_bluetooth_glib,bluez-android/glib,iConsole/Console-OS_external_bluetooth_glib,bratsche/glib,iConsole/Console-OS_external_bluetooth_glib,01org/android-bluez-glib,krichter722/glib,pstglia/platform-external-bluetooth-glib,ieei/glib-old-android,pstglia/external-bluetooth-glib,tchakabam/glib,djdeath/glib,zsx/glib,mzabaluev/glib,darren-clark/android_platform_external_bluetooth_glib,gale320/glib,MathieuDuponchelle/glib,antono/glib,pstglia/external-bluetooth-glib,01org/android-bluez-glib,ieei/glib,johne53/MB3Glib,mzabaluev/glib,bluez-android/glib,dicer/android_external_glib,justinkb/aosp-bluez.glib,ieei/glib-old-android,lukasz-skalski/glib,ieei/glib-old-android,Distrotech/glib,MathieuDuponchelle/glib,justinkb/aosp-bluez.glib