doc: refer to commands by name, not absolute path

For simplicity and portability.

I left some instances in README.OSX as is, because I'm worried about
invalidating the docs.

Author: bjornfor

README

@@ -256,10 +256,10 @@ the difference:
 
 LD_PRELOAD=src/libfaketime.so.1 FAKETIME="@2000-01-01 11:12:13" \
   FAKETIME_DONT_RESET=1 \
-  /bin/bash -c 'while [ $SECONDS -lt 5 ]; do date; sleep 1; done'
+  bash -c 'while [ $SECONDS -lt 5 ]; do date; sleep 1; done'
 
 LD_PRELOAD=src/libfaketime.so.1 FAKETIME="@2000-01-01 11:12:13" \
-  /bin/bash -c 'while [ $SECONDS -lt 5 ]; do date; sleep 1; done'
+  bash -c 'while [ $SECONDS -lt 5 ]; do date; sleep 1; done'
 
 In the second example, the "date" command will always print the same time,
 while in the first example, with FAKETIME_DONT_RESET set, time will increment
@@ -354,7 +354,7 @@ like "+0 x2", i.e., use an explicit zero offset as a prefix in your FAKETIME.
 For testing, your should run a command like
 
 LD_PRELOAD=./libfaketime.so.1 FAKETIME="+1,5y x10,0" \
-/bin/bash -c 'while true; do echo $SECONDS ; sleep 1 ; done'
+bash -c 'while true; do echo $SECONDS ; sleep 1 ; done'
 
 For each second that the endless loop sleeps, the executed bash shell will
 think that 10 seconds have passed ($SECONDS is a bash-internal variable

man/faketime.1

@@ -40,11 +40,11 @@ Use a specific GNU-date compatible implementation of the helper used to transfor
 
 .SH EXAMPLES
 .nf
-faketime 'last Friday 5 pm' /bin/date
-faketime '2008-12-24 08:15:42' /bin/date
-faketime -f '+2,5y x10,0' /bin/bash -c 'date; while true; do echo $SECONDS ; sleep 1 ; done'
-faketime -f '+2,5y x0,50' /bin/bash -c 'date; while true; do echo $SECONDS ; sleep 1 ; done'
-faketime -f '+2,5y i2,0' /bin/bash -c 'while true; do date ; sleep 1 ; done'
+faketime 'last Friday 5 pm' date
+faketime '2008-12-24 08:15:42' date
+faketime -f '+2,5y x10,0' bash -c 'date; while true; do echo $SECONDS ; sleep 1 ; done'
+faketime -f '+2,5y x0,50' bash -c 'date; while true; do echo $SECONDS ; sleep 1 ; done'
+faketime -f '+2,5y i2,0' bash -c 'while true; do date ; sleep 1 ; done'
 In this single case all spawned processes will use the same global clock without restarting it at the start of each process.
 
 (Please note that it depends on your locale settings whether . or , has to be used for fractional offsets)

src/faketime.c

@@ -84,11 +84,11 @@ void usage(const char *name)
   "  --date-prog PROG    : Use specified GNU-compatible implementation of 'date' program\n"
   "\n"
   "Examples:\n"
-  "%s 'last friday 5 pm' /bin/date\n"
-  "%s '2008-12-24 08:15:42' /bin/date\n"
-  "%s -f '+2,5y x10,0' /bin/bash -c 'date; while true; do echo $SECONDS ; sleep 1 ; done'\n"
-  "%s -f '+2,5y x0,50' /bin/bash -c 'date; while true; do echo $SECONDS ; sleep 1 ; done'\n"
-  "%s -f '+2,5y i2,0' /bin/bash -c 'date; while true; do date; sleep 1 ; done'\n"
+  "%s 'last friday 5 pm' date\n"
+  "%s '2008-12-24 08:15:42' date\n"
+  "%s -f '+2,5y x10,0' bash -c 'date; while true; do echo $SECONDS ; sleep 1 ; done'\n"
+  "%s -f '+2,5y x0,50' bash -c 'date; while true; do echo $SECONDS ; sleep 1 ; done'\n"
+  "%s -f '+2,5y i2,0' bash -c 'date; while true; do date; sleep 1 ; done'\n"
   "In this single case all spawned processes will use the same global clock\n"
   "without restarting it at the start of each process.\n\n"
   "(Please note that it depends on your locale settings whether . or , has to be used for fractions)\n"