scanf.3, system.3, initrd.4, sk98lin.4, mdoc.samples.7, nscd.8: grfix

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

man3/scanf.3

@@ -695,7 +695,7 @@ behavior of specifiers defined in C89.
 .PP
 Some combinations of the type modifiers and conversion
 specifiers defined by ANSI C do not make sense
-(e.g.
+(e.g.,
 .BR "%Ld" ).
 While they may have a well-defined behavior on Linux, this need not
 to be so on other architectures.

man3/system.3

@@ -50,7 +50,7 @@ and
 .B SIGQUIT
 will be ignored.
 .SH "RETURN VALUE"
-The value returned is \-1 on error (e.g.
+The value returned is \-1 on error (e.g.,
 .BR fork (2)
 failed),
 and the return status of the command otherwise.

man4/initrd.4

@@ -55,7 +55,7 @@ already created, it can be created with the following commands:
 .fi
 .PP
 Also, support for both "RAM disk" and "Initial RAM disk"
-(e.g.
+(e.g.,
 .BR CONFIG_BLK_DEV_RAM=y
 and
 .BR CONFIG_BLK_DEV_INITRD=y )
@@ -111,7 +111,7 @@ The kernel then read-write mounts the device
 as the initial root file system.
 .IP 4.
 If the indicated normal root file system is also the initial
-root file-system (e.g.
+root file-system (e.g.,
 .IR /dev/ram0 )
 then the kernel skips to the last step for the usual boot sequence.
 .IP 5.

man4/sk98lin.4

@@ -422,7 +422,7 @@ Stating any other port parameter together with this
 .I ConType
 parameter will result in a merged configuration of those settings.
 This is due to
-the fact, that the per-port parameters (e.g.
+the fact, that the per-port parameters (e.g.,
 .IR Speed_A )
 have a higher priority than the combined variable
 .IR ConType .

man7/mdoc.samples.7

@@ -434,7 +434,7 @@ are handled by replacing the
 .Ql \e
 with
 .Ql \ee
-(e.g.
+(e.g.,
 .Ql \een )
 to preserve
 the backslash.

man8/nscd.8

@@ -59,7 +59,7 @@ calls remain uncached as a result.
 will give you a list with all options and what they do.
 .SH NOTES
 The daemon will try to watch for changes in configuration files
-appropriate for each database (e.g.
+appropriate for each database (e.g.,
 .I /etc/passwd
 for the
 .I passwd